Home / 87,218.10-130,827.66-31,060.40

Finding the Fourth Proportional to 87,218.10, 130,827.66 and 31,060.40

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Solution

The fourth proportional to 87,218.10, 130,827.66 and 31,060.40 is: 46,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,218.10 : 130,827.66 = 31,060.40 : x
  2. Step 2: Convert to fraction form
    87,218.10/130,827.66 = 31,060.40/x
  3. Step 3: Cross multiply
    87,218.10x = 130,827.66 × 31,060.40
  4. Step 4: Simplify right side
    87,218.10x = 4,063,559,450.66
  5. Step 5: Solve for x
    x = 4,063,559,450.66/87,218.10
  6. Step 6: Final answer
    x = 46,590.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.