Home / 71,111.64-98,132.18-39,279.85

Finding the Fourth Proportional to 71,111.64, 98,132.18 and 39,279.85

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Solution

The fourth proportional to 71,111.64, 98,132.18 and 39,279.85 is: 54,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,111.64 : 98,132.18 = 39,279.85 : x
  2. Step 2: Convert to fraction form
    71,111.64/98,132.18 = 39,279.85/x
  3. Step 3: Cross multiply
    71,111.64x = 98,132.18 × 39,279.85
  4. Step 4: Simplify right side
    71,111.64x = 3,854,617,420.84
  5. Step 5: Solve for x
    x = 3,854,617,420.84/71,111.64
  6. Step 6: Final answer
    x = 54,205.16

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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.