Home / 71,328.89-98,432.66-39,497.10

Finding the Fourth Proportional to 71,328.89, 98,432.66 and 39,497.10

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Solution

The fourth proportional to 71,328.89, 98,432.66 and 39,497.10 is: 54,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.89 : 98,432.66 = 39,497.10 : x
  2. Step 2: Convert to fraction form
    71,328.89/98,432.66 = 39,497.10/x
  3. Step 3: Cross multiply
    71,328.89x = 98,432.66 × 39,497.10
  4. Step 4: Simplify right side
    71,328.89x = 3,887,804,615.29
  5. Step 5: Solve for x
    x = 3,887,804,615.29/71,328.89
  6. Step 6: Final answer
    x = 54,505.33

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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.