Home / 72,575.17-108,869.60-28,205.33

Finding the Fourth Proportional to 72,575.17, 108,869.60 and 28,205.33

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Solution

The fourth proportional to 72,575.17, 108,869.60 and 28,205.33 is: 42,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,575.17 : 108,869.60 = 28,205.33 : x
  2. Step 2: Convert to fraction form
    72,575.17/108,869.60 = 28,205.33/x
  3. Step 3: Cross multiply
    72,575.17x = 108,869.60 × 28,205.33
  4. Step 4: Simplify right side
    72,575.17x = 3,070,702,521.13
  5. Step 5: Solve for x
    x = 3,070,702,521.13/72,575.17
  6. Step 6: Final answer
    x = 42,310.65

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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.