Home / 87,732.29-121,079.94-53,763.32

Finding the Fourth Proportional to 87,732.29, 121,079.94 and 53,763.32

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Solution

The fourth proportional to 87,732.29, 121,079.94 and 53,763.32 is: 74,199.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,732.29 : 121,079.94 = 53,763.32 : x
  2. Step 2: Convert to fraction form
    87,732.29/121,079.94 = 53,763.32/x
  3. Step 3: Cross multiply
    87,732.29x = 121,079.94 × 53,763.32
  4. Step 4: Simplify right side
    87,732.29x = 6,509,659,559.80
  5. Step 5: Solve for x
    x = 6,509,659,559.80/87,732.29
  6. Step 6: Final answer
    x = 74,199.13

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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.