Home / 72,339.11-108,508.67-30,196.20

Finding the Fourth Proportional to 72,339.11, 108,508.67 and 30,196.20

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Solution

The fourth proportional to 72,339.11, 108,508.67 and 30,196.20 is: 45,294.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,339.11 : 108,508.67 = 30,196.20 : x
  2. Step 2: Convert to fraction form
    72,339.11/108,508.67 = 30,196.20/x
  3. Step 3: Cross multiply
    72,339.11x = 108,508.67 × 30,196.20
  4. Step 4: Simplify right side
    72,339.11x = 3,276,549,350.07
  5. Step 5: Solve for x
    x = 3,276,549,350.07/72,339.11
  6. Step 6: Final answer
    x = 45,294.30

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1.5x scale

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.