Home / 87,872.16-121,263.65-47,585.96

Finding the Fourth Proportional to 87,872.16, 121,263.65 and 47,585.96

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Solution

The fourth proportional to 87,872.16, 121,263.65 and 47,585.96 is: 65,668.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,872.16 : 121,263.65 = 47,585.96 : x
  2. Step 2: Convert to fraction form
    87,872.16/121,263.65 = 47,585.96/x
  3. Step 3: Cross multiply
    87,872.16x = 121,263.65 × 47,585.96
  4. Step 4: Simplify right side
    87,872.16x = 5,770,447,263.58
  5. Step 5: Solve for x
    x = 5,770,447,263.58/87,872.16
  6. Step 6: Final answer
    x = 65,668.66

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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.