Home / 87,639.02-131,446.17-28,475.41

Finding the Fourth Proportional to 87,639.02, 131,446.17 and 28,475.41

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Solution

The fourth proportional to 87,639.02, 131,446.17 and 28,475.41 is: 42,709.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,639.02 : 131,446.17 = 28,475.41 : x
  2. Step 2: Convert to fraction form
    87,639.02/131,446.17 = 28,475.41/x
  3. Step 3: Cross multiply
    87,639.02x = 131,446.17 × 28,475.41
  4. Step 4: Simplify right side
    87,639.02x = 3,742,983,583.68
  5. Step 5: Solve for x
    x = 3,742,983,583.68/87,639.02
  6. Step 6: Final answer
    x = 42,709.10

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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.