Home / 72,139.14-108,204.66-19,544.76

Finding the Fourth Proportional to 72,139.14, 108,204.66 and 19,544.76

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Solution

The fourth proportional to 72,139.14, 108,204.66 and 19,544.76 is: 29,316.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,139.14 : 108,204.66 = 19,544.76 : x
  2. Step 2: Convert to fraction form
    72,139.14/108,204.66 = 19,544.76/x
  3. Step 3: Cross multiply
    72,139.14x = 108,204.66 × 19,544.76
  4. Step 4: Simplify right side
    72,139.14x = 2,114,834,110.58
  5. Step 5: Solve for x
    x = 2,114,834,110.58/72,139.14
  6. Step 6: Final answer
    x = 29,316.04

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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.