Home / 87,197.94-130,809.20-28,013.76

Finding the Fourth Proportional to 87,197.94, 130,809.20 and 28,013.76

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Solution

The fourth proportional to 87,197.94, 130,809.20 and 28,013.76 is: 42,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,197.94 : 130,809.20 = 28,013.76 : x
  2. Step 2: Convert to fraction form
    87,197.94/130,809.20 = 28,013.76/x
  3. Step 3: Cross multiply
    87,197.94x = 130,809.20 × 28,013.76
  4. Step 4: Simplify right side
    87,197.94x = 3,664,457,534.59
  5. Step 5: Solve for x
    x = 3,664,457,534.59/87,197.94
  6. Step 6: Final answer
    x = 42,024.59

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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.