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Finding the Fourth Proportional to 83,370, 115,050.96 and 45,644.88

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Solution

The fourth proportional to 83,370, 115,050.96 and 45,644.88 is: 62,990.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,370 : 115,050.96 = 45,644.88 : x
  2. Step 2: Convert to fraction form
    83,370/115,050.96 = 45,644.88/x
  3. Step 3: Cross multiply
    83,370x = 115,050.96 × 45,644.88
  4. Step 4: Simplify right side
    83,370x = 5,251,487,263.08
  5. Step 5: Solve for x
    x = 5,251,487,263.08/83,370
  6. Step 6: Final answer
    x = 62,990.13

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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.