Home / 61,976.30-92,964.45-20,417.90

Finding the Fourth Proportional to 61,976.30, 92,964.45 and 20,417.90

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Solution

The fourth proportional to 61,976.30, 92,964.45 and 20,417.90 is: 30,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,976.30 : 92,964.45 = 20,417.90 : x
  2. Step 2: Convert to fraction form
    61,976.30/92,964.45 = 20,417.90/x
  3. Step 3: Cross multiply
    61,976.30x = 92,964.45 × 20,417.90
  4. Step 4: Simplify right side
    61,976.30x = 1,898,138,843.66
  5. Step 5: Solve for x
    x = 1,898,138,843.66/61,976.30
  6. Step 6: Final answer
    x = 30,626.85

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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.