Home / 93,729.28-129,348.50-51,287.80

Finding the Fourth Proportional to 93,729.28, 129,348.50 and 51,287.80

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Solution

The fourth proportional to 93,729.28, 129,348.50 and 51,287.80 is: 70,778.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,729.28 : 129,348.50 = 51,287.80 : x
  2. Step 2: Convert to fraction form
    93,729.28/129,348.50 = 51,287.80/x
  3. Step 3: Cross multiply
    93,729.28x = 129,348.50 × 51,287.80
  4. Step 4: Simplify right side
    93,729.28x = 6,633,999,998.30
  5. Step 5: Solve for x
    x = 6,633,999,998.30/93,729.28
  6. Step 6: Final answer
    x = 70,778.31

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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.