Home / 87,773.08-121,127.72-47,487.71

Finding the Fourth Proportional to 87,773.08, 121,127.72 and 47,487.71

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Solution

The fourth proportional to 87,773.08, 121,127.72 and 47,487.71 is: 65,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,773.08 : 121,127.72 = 47,487.71 : x
  2. Step 2: Convert to fraction form
    87,773.08/121,127.72 = 47,487.71/x
  3. Step 3: Cross multiply
    87,773.08x = 121,127.72 × 47,487.71
  4. Step 4: Simplify right side
    87,773.08x = 5,752,077,197.24
  5. Step 5: Solve for x
    x = 5,752,077,197.24/87,773.08
  6. Step 6: Final answer
    x = 65,533.50

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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.