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Finding the Fourth Proportional to 83,651.04, 115,326.72 and 71,663.04

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Solution

The fourth proportional to 83,651.04, 115,326.72 and 71,663.04 is: 98,799.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,651.04 : 115,326.72 = 71,663.04 : x
  2. Step 2: Convert to fraction form
    83,651.04/115,326.72 = 71,663.04/x
  3. Step 3: Cross multiply
    83,651.04x = 115,326.72 × 71,663.04
  4. Step 4: Simplify right side
    83,651.04x = 8,264,663,348.43
  5. Step 5: Solve for x
    x = 8,264,663,348.43/83,651.04
  6. Step 6: Final answer
    x = 98,799.29

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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.