Home / 71,224.10-98,283.12-39,385.02

Finding the Fourth Proportional to 71,224.10, 98,283.12 and 39,385.02

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Solution

The fourth proportional to 71,224.10, 98,283.12 and 39,385.02 is: 54,347.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,224.10 : 98,283.12 = 39,385.02 : x
  2. Step 2: Convert to fraction form
    71,224.10/98,283.12 = 39,385.02/x
  3. Step 3: Cross multiply
    71,224.10x = 98,283.12 × 39,385.02
  4. Step 4: Simplify right side
    71,224.10x = 3,870,882,646.86
  5. Step 5: Solve for x
    x = 3,870,882,646.86/71,224.10
  6. Step 6: Final answer
    x = 54,347.94

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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.