Home / 276,975.83-415,463.61-66,613.70

Finding the Fourth Proportional to 276,975.83, 415,463.61 and 66,613.70

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Solution

The fourth proportional to 276,975.83, 415,463.61 and 66,613.70 is: 99,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,975.83 : 415,463.61 = 66,613.70 : x
  2. Step 2: Convert to fraction form
    276,975.83/415,463.61 = 66,613.70/x
  3. Step 3: Cross multiply
    276,975.83x = 415,463.61 × 66,613.70
  4. Step 4: Simplify right side
    276,975.83x = 27,675,569,565.92
  5. Step 5: Solve for x
    x = 27,675,569,565.92/276,975.83
  6. Step 6: Final answer
    x = 99,920.52

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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.