Home / 87,153.13-130,714.65-23,111.72

Finding the Fourth Proportional to 87,153.13, 130,714.65 and 23,111.72

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Solution

The fourth proportional to 87,153.13, 130,714.65 and 23,111.72 is: 34,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,153.13 : 130,714.65 = 23,111.72 : x
  2. Step 2: Convert to fraction form
    87,153.13/130,714.65 = 23,111.72/x
  3. Step 3: Cross multiply
    87,153.13x = 130,714.65 × 23,111.72
  4. Step 4: Simplify right side
    87,153.13x = 3,021,040,390.70
  5. Step 5: Solve for x
    x = 3,021,040,390.70/87,153.13
  6. Step 6: Final answer
    x = 34,663.59

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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.