Home / 83,507.45-125,304.23-39,138.71

Finding the Fourth Proportional to 83,507.45, 125,304.23 and 39,138.71

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Solution

The fourth proportional to 83,507.45, 125,304.23 and 39,138.71 is: 58,728.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,507.45 : 125,304.23 = 39,138.71 : x
  2. Step 2: Convert to fraction form
    83,507.45/125,304.23 = 39,138.71/x
  3. Step 3: Cross multiply
    83,507.45x = 125,304.23 × 39,138.71
  4. Step 4: Simplify right side
    83,507.45x = 4,904,245,391.07
  5. Step 5: Solve for x
    x = 4,904,245,391.07/83,507.45
  6. Step 6: Final answer
    x = 58,728.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.