Home / 71,328.06-98,432.72-39,496.96

Finding the Fourth Proportional to 71,328.06, 98,432.72 and 39,496.96

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Solution

The fourth proportional to 71,328.06, 98,432.72 and 39,496.96 is: 54,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.06 : 98,432.72 = 39,496.96 : x
  2. Step 2: Convert to fraction form
    71,328.06/98,432.72 = 39,496.96/x
  3. Step 3: Cross multiply
    71,328.06x = 98,432.72 × 39,496.96
  4. Step 4: Simplify right side
    71,328.06x = 3,887,792,760.96
  5. Step 5: Solve for x
    x = 3,887,792,760.96/71,328.06
  6. Step 6: Final answer
    x = 54,505.80

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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.