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Finding the Fourth Proportional to 87,593.69, 131,409.02 and 28,424.76

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Solution

The fourth proportional to 87,593.69, 131,409.02 and 28,424.76 is: 42,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,593.69 : 131,409.02 = 28,424.76 : x
  2. Step 2: Convert to fraction form
    87,593.69/131,409.02 = 28,424.76/x
  3. Step 3: Cross multiply
    87,593.69x = 131,409.02 × 28,424.76
  4. Step 4: Simplify right side
    87,593.69x = 3,735,269,855.34
  5. Step 5: Solve for x
    x = 3,735,269,855.34/87,593.69
  6. Step 6: Final answer
    x = 42,643.14

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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.