Home / 74,772.75-112,159.10-22,181.78

Finding the Fourth Proportional to 74,772.75, 112,159.10 and 22,181.78

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Solution

The fourth proportional to 74,772.75, 112,159.10 and 22,181.78 is: 33,272.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,772.75 : 112,159.10 = 22,181.78 : x
  2. Step 2: Convert to fraction form
    74,772.75/112,159.10 = 22,181.78/x
  3. Step 3: Cross multiply
    74,772.75x = 112,159.10 × 22,181.78
  4. Step 4: Simplify right side
    74,772.75x = 2,487,887,809.49
  5. Step 5: Solve for x
    x = 2,487,887,809.49/74,772.75
  6. Step 6: Final answer
    x = 33,272.65

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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.