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Finding the Fourth Proportional to 54,345.60, 76,258.80 and 54,345.60

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Solution

The fourth proportional to 54,345.60, 76,258.80 and 54,345.60 is: 76,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.60 : 76,258.80 = 54,345.60 : x
  2. Step 2: Convert to fraction form
    54,345.60/76,258.80 = 54,345.60/x
  3. Step 3: Cross multiply
    54,345.60x = 76,258.80 × 54,345.60
  4. Step 4: Simplify right side
    54,345.60x = 4,144,330,241.28
  5. Step 5: Solve for x
    x = 4,144,330,241.28/54,345.60
  6. Step 6: Final answer
    x = 76,258.80

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.