Home / 83,626.31-115,402.40-45,385.93

Finding the Fourth Proportional to 83,626.31, 115,402.40 and 45,385.93

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Solution

The fourth proportional to 83,626.31, 115,402.40 and 45,385.93 is: 62,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,626.31 : 115,402.40 = 45,385.93 : x
  2. Step 2: Convert to fraction form
    83,626.31/115,402.40 = 45,385.93/x
  3. Step 3: Cross multiply
    83,626.31x = 115,402.40 × 45,385.93
  4. Step 4: Simplify right side
    83,626.31x = 5,237,645,335.75
  5. Step 5: Solve for x
    x = 5,237,645,335.75/83,626.31
  6. Step 6: Final answer
    x = 62,631.55

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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.