Home / 71,445.45-98,589.92-39,613.17

Finding the Fourth Proportional to 71,445.45, 98,589.92 and 39,613.17

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Solution

The fourth proportional to 71,445.45, 98,589.92 and 39,613.17 is: 54,663.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,445.45 : 98,589.92 = 39,613.17 : x
  2. Step 2: Convert to fraction form
    71,445.45/98,589.92 = 39,613.17/x
  3. Step 3: Cross multiply
    71,445.45x = 98,589.92 × 39,613.17
  4. Step 4: Simplify right side
    71,445.45x = 3,905,459,063.18
  5. Step 5: Solve for x
    x = 3,905,459,063.18/71,445.45
  6. Step 6: Final answer
    x = 54,663.51

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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.