Home / 87,231.51-130,764.15-28,025.63

Finding the Fourth Proportional to 87,231.51, 130,764.15 and 28,025.63

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Solution

The fourth proportional to 87,231.51, 130,764.15 and 28,025.63 is: 42,011.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,231.51 : 130,764.15 = 28,025.63 : x
  2. Step 2: Convert to fraction form
    87,231.51/130,764.15 = 28,025.63/x
  3. Step 3: Cross multiply
    87,231.51x = 130,764.15 × 28,025.63
  4. Step 4: Simplify right side
    87,231.51x = 3,664,747,031.34
  5. Step 5: Solve for x
    x = 3,664,747,031.34/87,231.51
  6. Step 6: Final answer
    x = 42,011.73

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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.