Home / 72,308.17-108,444.56-30,188.60

Finding the Fourth Proportional to 72,308.17, 108,444.56 and 30,188.60

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Solution

The fourth proportional to 72,308.17, 108,444.56 and 30,188.60 is: 45,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,308.17 : 108,444.56 = 30,188.60 : x
  2. Step 2: Convert to fraction form
    72,308.17/108,444.56 = 30,188.60/x
  3. Step 3: Cross multiply
    72,308.17x = 108,444.56 × 30,188.60
  4. Step 4: Simplify right side
    72,308.17x = 3,273,789,937.33
  5. Step 5: Solve for x
    x = 3,273,789,937.33/72,308.17
  6. Step 6: Final answer
    x = 45,275.52

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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.