Home / 72,451.39-108,677.85-19,860.88

Finding the Fourth Proportional to 72,451.39, 108,677.85 and 19,860.88

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Solution

The fourth proportional to 72,451.39, 108,677.85 and 19,860.88 is: 29,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,451.39 : 108,677.85 = 19,860.88 : x
  2. Step 2: Convert to fraction form
    72,451.39/108,677.85 = 19,860.88/x
  3. Step 3: Cross multiply
    72,451.39x = 108,677.85 × 19,860.88
  4. Step 4: Simplify right side
    72,451.39x = 2,158,437,737.51
  5. Step 5: Solve for x
    x = 2,158,437,737.51/72,451.39
  6. Step 6: Final answer
    x = 29,791.53

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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.