Home / 87,927.07-121,339.19-47,641.92

Finding the Fourth Proportional to 87,927.07, 121,339.19 and 47,641.92

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Solution

The fourth proportional to 87,927.07, 121,339.19 and 47,641.92 is: 65,745.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,927.07 : 121,339.19 = 47,641.92 : x
  2. Step 2: Convert to fraction form
    87,927.07/121,339.19 = 47,641.92/x
  3. Step 3: Cross multiply
    87,927.07x = 121,339.19 × 47,641.92
  4. Step 4: Simplify right side
    87,927.07x = 5,780,832,195.47
  5. Step 5: Solve for x
    x = 5,780,832,195.47/87,927.07
  6. Step 6: Final answer
    x = 65,745.76

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1.5x scale

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.