Home / 87,853.92-121,238.22-47,567.70

Finding the Fourth Proportional to 87,853.92, 121,238.22 and 47,567.70

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Solution

The fourth proportional to 87,853.92, 121,238.22 and 47,567.70 is: 65,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,853.92 : 121,238.22 = 47,567.70 : x
  2. Step 2: Convert to fraction form
    87,853.92/121,238.22 = 47,567.70/x
  3. Step 3: Cross multiply
    87,853.92x = 121,238.22 × 47,567.70
  4. Step 4: Simplify right side
    87,853.92x = 5,767,023,277.49
  5. Step 5: Solve for x
    x = 5,767,023,277.49/87,853.92
  6. Step 6: Final answer
    x = 65,643.32

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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.