Home / 73,947.68-102,045.52-42,121.12

Finding the Fourth Proportional to 73,947.68, 102,045.52 and 42,121.12

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Solution

The fourth proportional to 73,947.68, 102,045.52 and 42,121.12 is: 58,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,947.68 : 102,045.52 = 42,121.12 : x
  2. Step 2: Convert to fraction form
    73,947.68/102,045.52 = 42,121.12/x
  3. Step 3: Cross multiply
    73,947.68x = 102,045.52 × 42,121.12
  4. Step 4: Simplify right side
    73,947.68x = 4,298,271,593.38
  5. Step 5: Solve for x
    x = 4,298,271,593.38/73,947.68
  6. Step 6: Final answer
    x = 58,125.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.