Home / 72,966.28-109,384.81-28,624.85

Finding the Fourth Proportional to 72,966.28, 109,384.81 and 28,624.85

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Solution

The fourth proportional to 72,966.28, 109,384.81 and 28,624.85 is: 42,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,966.28 : 109,384.81 = 28,624.85 : x
  2. Step 2: Convert to fraction form
    72,966.28/109,384.81 = 28,624.85/x
  3. Step 3: Cross multiply
    72,966.28x = 109,384.81 × 28,624.85
  4. Step 4: Simplify right side
    72,966.28x = 3,131,123,778.53
  5. Step 5: Solve for x
    x = 3,131,123,778.53/72,966.28
  6. Step 6: Final answer
    x = 42,911.93

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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.