Home / 81,319.29-121,757.49-63,244.77

Finding the Fourth Proportional to 81,319.29, 121,757.49 and 63,244.77

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Solution

The fourth proportional to 81,319.29, 121,757.49 and 63,244.77 is: 94,694.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,319.29 : 121,757.49 = 63,244.77 : x
  2. Step 2: Convert to fraction form
    81,319.29/121,757.49 = 63,244.77/x
  3. Step 3: Cross multiply
    81,319.29x = 121,757.49 × 63,244.77
  4. Step 4: Simplify right side
    81,319.29x = 7,700,524,450.83
  5. Step 5: Solve for x
    x = 7,700,524,450.83/81,319.29
  6. Step 6: Final answer
    x = 94,694.93

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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.