Home / 91,159.20-136,737.90-28,829.70

Finding the Fourth Proportional to 91,159.20, 136,737.90 and 28,829.70

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Solution

The fourth proportional to 91,159.20, 136,737.90 and 28,829.70 is: 43,244.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,159.20 : 136,737.90 = 28,829.70 : x
  2. Step 2: Convert to fraction form
    91,159.20/136,737.90 = 28,829.70/x
  3. Step 3: Cross multiply
    91,159.20x = 136,737.90 × 28,829.70
  4. Step 4: Simplify right side
    91,159.20x = 3,942,112,635.63
  5. Step 5: Solve for x
    x = 3,942,112,635.63/91,159.20
  6. Step 6: Final answer
    x = 43,244.27

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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.