Home / 87,501.76-131,254.50-31,345.52

Finding the Fourth Proportional to 87,501.76, 131,254.50 and 31,345.52

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Solution

The fourth proportional to 87,501.76, 131,254.50 and 31,345.52 is: 47,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,501.76 : 131,254.50 = 31,345.52 : x
  2. Step 2: Convert to fraction form
    87,501.76/131,254.50 = 31,345.52/x
  3. Step 3: Cross multiply
    87,501.76x = 131,254.50 × 31,345.52
  4. Step 4: Simplify right side
    87,501.76x = 4,114,240,554.84
  5. Step 5: Solve for x
    x = 4,114,240,554.84/87,501.76
  6. Step 6: Final answer
    x = 47,018.95

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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.