Home / 87,970.26-131,953.55-21,410.76

Finding the Fourth Proportional to 87,970.26, 131,953.55 and 21,410.76

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Solution

The fourth proportional to 87,970.26, 131,953.55 and 21,410.76 is: 32,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,970.26 : 131,953.55 = 21,410.76 : x
  2. Step 2: Convert to fraction form
    87,970.26/131,953.55 = 21,410.76/x
  3. Step 3: Cross multiply
    87,970.26x = 131,953.55 × 21,410.76
  4. Step 4: Simplify right side
    87,970.26x = 2,825,226,298.41
  5. Step 5: Solve for x
    x = 2,825,226,298.41/87,970.26
  6. Step 6: Final answer
    x = 32,115.70

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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.