Home / 87,740.46-121,081.37-47,453.90

Finding the Fourth Proportional to 87,740.46, 121,081.37 and 47,453.90

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Solution

The fourth proportional to 87,740.46, 121,081.37 and 47,453.90 is: 65,486.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,740.46 : 121,081.37 = 47,453.90 : x
  2. Step 2: Convert to fraction form
    87,740.46/121,081.37 = 47,453.90/x
  3. Step 3: Cross multiply
    87,740.46x = 121,081.37 × 47,453.90
  4. Step 4: Simplify right side
    87,740.46x = 5,745,782,381.17
  5. Step 5: Solve for x
    x = 5,745,782,381.17/87,740.46
  6. Step 6: Final answer
    x = 65,486.12

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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.