Home / 72,581.40-108,844.02-28,202.31

Finding the Fourth Proportional to 72,581.40, 108,844.02 and 28,202.31

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Solution

The fourth proportional to 72,581.40, 108,844.02 and 28,202.31 is: 42,292.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.40 : 108,844.02 = 28,202.31 : x
  2. Step 2: Convert to fraction form
    72,581.40/108,844.02 = 28,202.31/x
  3. Step 3: Cross multiply
    72,581.40x = 108,844.02 × 28,202.31
  4. Step 4: Simplify right side
    72,581.40x = 3,069,652,793.69
  5. Step 5: Solve for x
    x = 3,069,652,793.69/72,581.40
  6. Step 6: Final answer
    x = 42,292.55

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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.