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Finding the Fourth Proportional to 83,326.87, 115,044.74 and 74,358.96

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Solution

The fourth proportional to 83,326.87, 115,044.74 and 74,358.96 is: 102,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,326.87 : 115,044.74 = 74,358.96 : x
  2. Step 2: Convert to fraction form
    83,326.87/115,044.74 = 74,358.96/x
  3. Step 3: Cross multiply
    83,326.87x = 115,044.74 × 74,358.96
  4. Step 4: Simplify right side
    83,326.87x = 8,554,607,219.87
  5. Step 5: Solve for x
    x = 8,554,607,219.87/83,326.87
  6. Step 6: Final answer
    x = 102,663.25

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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.