Home / 82,100.42-123,199.27-34,712.92

Finding the Fourth Proportional to 82,100.42, 123,199.27 and 34,712.92

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Solution

The fourth proportional to 82,100.42, 123,199.27 and 34,712.92 is: 52,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,100.42 : 123,199.27 = 34,712.92 : x
  2. Step 2: Convert to fraction form
    82,100.42/123,199.27 = 34,712.92/x
  3. Step 3: Cross multiply
    82,100.42x = 123,199.27 × 34,712.92
  4. Step 4: Simplify right side
    82,100.42x = 4,276,606,470.79
  5. Step 5: Solve for x
    x = 4,276,606,470.79/82,100.42
  6. Step 6: Final answer
    x = 52,089.95

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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.