Home / 87,271.66-130,924.77-28,102.78

Finding the Fourth Proportional to 87,271.66, 130,924.77 and 28,102.78

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Solution

The fourth proportional to 87,271.66, 130,924.77 and 28,102.78 is: 42,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,271.66 : 130,924.77 = 28,102.78 : x
  2. Step 2: Convert to fraction form
    87,271.66/130,924.77 = 28,102.78/x
  3. Step 3: Cross multiply
    87,271.66x = 130,924.77 × 28,102.78
  4. Step 4: Simplify right side
    87,271.66x = 3,679,350,007.86
  5. Step 5: Solve for x
    x = 3,679,350,007.86/87,271.66
  6. Step 6: Final answer
    x = 42,159.73

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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.