Home / 87,927.15-121,339.29-47,641.95

Finding the Fourth Proportional to 87,927.15, 121,339.29 and 47,641.95

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Solution

The fourth proportional to 87,927.15, 121,339.29 and 47,641.95 is: 65,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,927.15 : 121,339.29 = 47,641.95 : x
  2. Step 2: Convert to fraction form
    87,927.15/121,339.29 = 47,641.95/x
  3. Step 3: Cross multiply
    87,927.15x = 121,339.29 × 47,641.95
  4. Step 4: Simplify right side
    87,927.15x = 5,780,840,387.22
  5. Step 5: Solve for x
    x = 5,780,840,387.22/87,927.15
  6. Step 6: Final answer
    x = 65,745.80

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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.