Home / 82,458.74-123,685.68-71,332.58

Finding the Fourth Proportional to 82,458.74, 123,685.68 and 71,332.58

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Solution

The fourth proportional to 82,458.74, 123,685.68 and 71,332.58 is: 106,996.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,458.74 : 123,685.68 = 71,332.58 : x
  2. Step 2: Convert to fraction form
    82,458.74/123,685.68 = 71,332.58/x
  3. Step 3: Cross multiply
    82,458.74x = 123,685.68 × 71,332.58
  4. Step 4: Simplify right side
    82,458.74x = 8,822,818,663.45
  5. Step 5: Solve for x
    x = 8,822,818,663.45/82,458.74
  6. Step 6: Final answer
    x = 106,996.77

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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.