Home / 72,032.20-108,080.70-25,318.60

Finding the Fourth Proportional to 72,032.20, 108,080.70 and 25,318.60

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Solution

The fourth proportional to 72,032.20, 108,080.70 and 25,318.60 is: 37,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,032.20 : 108,080.70 = 25,318.60 : x
  2. Step 2: Convert to fraction form
    72,032.20/108,080.70 = 25,318.60/x
  3. Step 3: Cross multiply
    72,032.20x = 108,080.70 × 25,318.60
  4. Step 4: Simplify right side
    72,032.20x = 2,736,452,011.02
  5. Step 5: Solve for x
    x = 2,736,452,011.02/72,032.20
  6. Step 6: Final answer
    x = 37,989.29

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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.