Home / 72,205.11-108,307.94-47,402.10

Finding the Fourth Proportional to 72,205.11, 108,307.94 and 47,402.10

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Solution

The fourth proportional to 72,205.11, 108,307.94 and 47,402.10 is: 71,103.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,205.11 : 108,307.94 = 47,402.10 : x
  2. Step 2: Convert to fraction form
    72,205.11/108,307.94 = 47,402.10/x
  3. Step 3: Cross multiply
    72,205.11x = 108,307.94 × 47,402.10
  4. Step 4: Simplify right side
    72,205.11x = 5,134,023,565.66
  5. Step 5: Solve for x
    x = 5,134,023,565.66/72,205.11
  6. Step 6: Final answer
    x = 71,103.33

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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.