Home / 87,112.68-120,088.24-61,573.98

Finding the Fourth Proportional to 87,112.68, 120,088.24 and 61,573.98

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Solution

The fourth proportional to 87,112.68, 120,088.24 and 61,573.98 is: 84,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,112.68 : 120,088.24 = 61,573.98 : x
  2. Step 2: Convert to fraction form
    87,112.68/120,088.24 = 61,573.98/x
  3. Step 3: Cross multiply
    87,112.68x = 120,088.24 × 61,573.98
  4. Step 4: Simplify right side
    87,112.68x = 7,394,310,888.00
  5. Step 5: Solve for x
    x = 7,394,310,888.00/87,112.68
  6. Step 6: Final answer
    x = 84,882.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.