Home / 69,680.76-104,521.11-19,761.30

Finding the Fourth Proportional to 69,680.76, 104,521.11 and 19,761.30

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Solution

The fourth proportional to 69,680.76, 104,521.11 and 19,761.30 is: 29,641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,680.76 : 104,521.11 = 19,761.30 : x
  2. Step 2: Convert to fraction form
    69,680.76/104,521.11 = 19,761.30/x
  3. Step 3: Cross multiply
    69,680.76x = 104,521.11 × 19,761.30
  4. Step 4: Simplify right side
    69,680.76x = 2,065,473,011.04
  5. Step 5: Solve for x
    x = 2,065,473,011.04/69,680.76
  6. Step 6: Final answer
    x = 29,641.94

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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.