Home / 69,341.18-103,995.68-19,424.78

Finding the Fourth Proportional to 69,341.18, 103,995.68 and 19,424.78

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Solution

The fourth proportional to 69,341.18, 103,995.68 and 19,424.78 is: 29,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,341.18 : 103,995.68 = 19,424.78 : x
  2. Step 2: Convert to fraction form
    69,341.18/103,995.68 = 19,424.78/x
  3. Step 3: Cross multiply
    69,341.18x = 103,995.68 × 19,424.78
  4. Step 4: Simplify right side
    69,341.18x = 2,020,093,204.95
  5. Step 5: Solve for x
    x = 2,020,093,204.95/69,341.18
  6. Step 6: Final answer
    x = 29,132.66

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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.