Home / 87,810.68-121,178.88-47,524.47

Finding the Fourth Proportional to 87,810.68, 121,178.88 and 47,524.47

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Solution

The fourth proportional to 87,810.68, 121,178.88 and 47,524.47 is: 65,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,810.68 : 121,178.88 = 47,524.47 : x
  2. Step 2: Convert to fraction form
    87,810.68/121,178.88 = 47,524.47/x
  3. Step 3: Cross multiply
    87,810.68x = 121,178.88 × 47,524.47
  4. Step 4: Simplify right side
    87,810.68x = 5,758,962,047.19
  5. Step 5: Solve for x
    x = 5,758,962,047.19/87,810.68
  6. Step 6: Final answer
    x = 65,583.85

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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.