Home / 87,001.12-130,510.32-27,821.92

Finding the Fourth Proportional to 87,001.12, 130,510.32 and 27,821.92

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Solution

The fourth proportional to 87,001.12, 130,510.32 and 27,821.92 is: 41,735.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,001.12 : 130,510.32 = 27,821.92 : x
  2. Step 2: Convert to fraction form
    87,001.12/130,510.32 = 27,821.92/x
  3. Step 3: Cross multiply
    87,001.12x = 130,510.32 × 27,821.92
  4. Step 4: Simplify right side
    87,001.12x = 3,631,047,682.21
  5. Step 5: Solve for x
    x = 3,631,047,682.21/87,001.12
  6. Step 6: Final answer
    x = 41,735.64

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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.