Home / 87,737.04-121,101.48-51,939.36

Finding the Fourth Proportional to 87,737.04, 121,101.48 and 51,939.36

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Solution

The fourth proportional to 87,737.04, 121,101.48 and 51,939.36 is: 71,690.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,737.04 : 121,101.48 = 51,939.36 : x
  2. Step 2: Convert to fraction form
    87,737.04/121,101.48 = 51,939.36/x
  3. Step 3: Cross multiply
    87,737.04x = 121,101.48 × 51,939.36
  4. Step 4: Simplify right side
    87,737.04x = 6,289,933,366.25
  5. Step 5: Solve for x
    x = 6,289,933,366.25/87,737.04
  6. Step 6: Final answer
    x = 71,690.74

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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.