Home / 87,734.48-121,017.83-57,521.75

Finding the Fourth Proportional to 87,734.48, 121,017.83 and 57,521.75

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Solution

The fourth proportional to 87,734.48, 121,017.83 and 57,521.75 is: 79,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,734.48 : 121,017.83 = 57,521.75 : x
  2. Step 2: Convert to fraction form
    87,734.48/121,017.83 = 57,521.75/x
  3. Step 3: Cross multiply
    87,734.48x = 121,017.83 × 57,521.75
  4. Step 4: Simplify right side
    87,734.48x = 6,961,156,470.10
  5. Step 5: Solve for x
    x = 6,961,156,470.10/87,734.48
  6. Step 6: Final answer
    x = 79,343.46

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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.