Home / 91,564.19-137,367.58-28,380.96

Finding the Fourth Proportional to 91,564.19, 137,367.58 and 28,380.96

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Solution

The fourth proportional to 91,564.19, 137,367.58 and 28,380.96 is: 42,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,564.19 : 137,367.58 = 28,380.96 : x
  2. Step 2: Convert to fraction form
    91,564.19/137,367.58 = 28,380.96/x
  3. Step 3: Cross multiply
    91,564.19x = 137,367.58 × 28,380.96
  4. Step 4: Simplify right side
    91,564.19x = 3,898,623,793.28
  5. Step 5: Solve for x
    x = 3,898,623,793.28/91,564.19
  6. Step 6: Final answer
    x = 42,578.04

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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.