Home / 87,191.94-130,758.48-28,013.70

Finding the Fourth Proportional to 87,191.94, 130,758.48 and 28,013.70

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Solution

The fourth proportional to 87,191.94, 130,758.48 and 28,013.70 is: 42,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,191.94 : 130,758.48 = 28,013.70 : x
  2. Step 2: Convert to fraction form
    87,191.94/130,758.48 = 28,013.70/x
  3. Step 3: Cross multiply
    87,191.94x = 130,758.48 × 28,013.70
  4. Step 4: Simplify right side
    87,191.94x = 3,663,028,831.18
  5. Step 5: Solve for x
    x = 3,663,028,831.18/87,191.94
  6. Step 6: Final answer
    x = 42,011.09

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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.