Home / 72,177.08-108,054.49-42,099.35

Finding the Fourth Proportional to 72,177.08, 108,054.49 and 42,099.35

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Solution

The fourth proportional to 72,177.08, 108,054.49 and 42,099.35 is: 63,025.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,177.08 : 108,054.49 = 42,099.35 : x
  2. Step 2: Convert to fraction form
    72,177.08/108,054.49 = 42,099.35/x
  3. Step 3: Cross multiply
    72,177.08x = 108,054.49 × 42,099.35
  4. Step 4: Simplify right side
    72,177.08x = 4,549,023,793.58
  5. Step 5: Solve for x
    x = 4,549,023,793.58/72,177.08
  6. Step 6: Final answer
    x = 63,025.88

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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.