Home / 87,803.90-121,169.37-47,517.66

Finding the Fourth Proportional to 87,803.90, 121,169.37 and 47,517.66

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Solution

The fourth proportional to 87,803.90, 121,169.37 and 47,517.66 is: 65,574.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.90 : 121,169.37 = 47,517.66 : x
  2. Step 2: Convert to fraction form
    87,803.90/121,169.37 = 47,517.66/x
  3. Step 3: Cross multiply
    87,803.90x = 121,169.37 × 47,517.66
  4. Step 4: Simplify right side
    87,803.90x = 5,757,684,926.07
  5. Step 5: Solve for x
    x = 5,757,684,926.07/87,803.90
  6. Step 6: Final answer
    x = 65,574.36

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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.