Home / 69,963.12-104,852.40-28,387.44

Finding the Fourth Proportional to 69,963.12, 104,852.40 and 28,387.44

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Solution

The fourth proportional to 69,963.12, 104,852.40 and 28,387.44 is: 42,543.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,963.12 : 104,852.40 = 28,387.44 : x
  2. Step 2: Convert to fraction form
    69,963.12/104,852.40 = 28,387.44/x
  3. Step 3: Cross multiply
    69,963.12x = 104,852.40 × 28,387.44
  4. Step 4: Simplify right side
    69,963.12x = 2,976,491,213.86
  5. Step 5: Solve for x
    x = 2,976,491,213.86/69,963.12
  6. Step 6: Final answer
    x = 42,543.72

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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.