Home / 87,715.70-131,574.78-28,551.68

Finding the Fourth Proportional to 87,715.70, 131,574.78 and 28,551.68

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Solution

The fourth proportional to 87,715.70, 131,574.78 and 28,551.68 is: 42,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,715.70 : 131,574.78 = 28,551.68 : x
  2. Step 2: Convert to fraction form
    87,715.70/131,574.78 = 28,551.68/x
  3. Step 3: Cross multiply
    87,715.70x = 131,574.78 × 28,551.68
  4. Step 4: Simplify right side
    87,715.70x = 3,756,681,014.63
  5. Step 5: Solve for x
    x = 3,756,681,014.63/87,715.70
  6. Step 6: Final answer
    x = 42,827.92

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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.