Home / 83,666.27-115,458.78-45,425.06

Finding the Fourth Proportional to 83,666.27, 115,458.78 and 45,425.06

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Solution

The fourth proportional to 83,666.27, 115,458.78 and 45,425.06 is: 62,686.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,666.27 : 115,458.78 = 45,425.06 : x
  2. Step 2: Convert to fraction form
    83,666.27/115,458.78 = 45,425.06/x
  3. Step 3: Cross multiply
    83,666.27x = 115,458.78 × 45,425.06
  4. Step 4: Simplify right side
    83,666.27x = 5,244,721,694.36
  5. Step 5: Solve for x
    x = 5,244,721,694.36/83,666.27
  6. Step 6: Final answer
    x = 62,686.21

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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.