Home / 87,935.10-121,350.22-47,649.97

Finding the Fourth Proportional to 87,935.10, 121,350.22 and 47,649.97

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Solution

The fourth proportional to 87,935.10, 121,350.22 and 47,649.97 is: 65,756.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,935.10 : 121,350.22 = 47,649.97 : x
  2. Step 2: Convert to fraction form
    87,935.10/121,350.22 = 47,649.97/x
  3. Step 3: Cross multiply
    87,935.10x = 121,350.22 × 47,649.97
  4. Step 4: Simplify right side
    87,935.10x = 5,782,334,342.49
  5. Step 5: Solve for x
    x = 5,782,334,342.49/87,935.10
  6. Step 6: Final answer
    x = 65,756.84

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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.