Home / 67,939.30-101,948.64-28,493.11

Finding the Fourth Proportional to 67,939.30, 101,948.64 and 28,493.11

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Solution

The fourth proportional to 67,939.30, 101,948.64 and 28,493.11 is: 42,756.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,939.30 : 101,948.64 = 28,493.11 : x
  2. Step 2: Convert to fraction form
    67,939.30/101,948.64 = 28,493.11/x
  3. Step 3: Cross multiply
    67,939.30x = 101,948.64 × 28,493.11
  4. Step 4: Simplify right side
    67,939.30x = 2,904,833,813.87
  5. Step 5: Solve for x
    x = 2,904,833,813.87/67,939.30
  6. Step 6: Final answer
    x = 42,756.31

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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.