Home / 51,118.60-70,548.06-28,457.20

Finding the Fourth Proportional to 51,118.60, 70,548.06 and 28,457.20

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Solution

The fourth proportional to 51,118.60, 70,548.06 and 28,457.20 is: 39,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,118.60 : 70,548.06 = 28,457.20 : x
  2. Step 2: Convert to fraction form
    51,118.60/70,548.06 = 28,457.20/x
  3. Step 3: Cross multiply
    51,118.60x = 70,548.06 × 28,457.20
  4. Step 4: Simplify right side
    51,118.60x = 2,007,600,253.03
  5. Step 5: Solve for x
    x = 2,007,600,253.03/51,118.60
  6. Step 6: Final answer
    x = 39,273.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.