Home / 51,307.60-76,961.40-27,979.60

Finding the Fourth Proportional to 51,307.60, 76,961.40 and 27,979.60

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Solution

The fourth proportional to 51,307.60, 76,961.40 and 27,979.60 is: 41,969.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,307.60 : 76,961.40 = 27,979.60 : x
  2. Step 2: Convert to fraction form
    51,307.60/76,961.40 = 27,979.60/x
  3. Step 3: Cross multiply
    51,307.60x = 76,961.40 × 27,979.60
  4. Step 4: Simplify right side
    51,307.60x = 2,153,349,187.44
  5. Step 5: Solve for x
    x = 2,153,349,187.44/51,307.60
  6. Step 6: Final answer
    x = 41,969.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.