Home / 42,758.20-64,144.32-13,176.04

Finding the Fourth Proportional to 42,758.20, 64,144.32 and 13,176.04

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Solution

The fourth proportional to 42,758.20, 64,144.32 and 13,176.04 is: 19,766.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,758.20 : 64,144.32 = 13,176.04 : x
  2. Step 2: Convert to fraction form
    42,758.20/64,144.32 = 13,176.04/x
  3. Step 3: Cross multiply
    42,758.20x = 64,144.32 × 13,176.04
  4. Step 4: Simplify right side
    42,758.20x = 845,168,126.09
  5. Step 5: Solve for x
    x = 845,168,126.09/42,758.20
  6. Step 6: Final answer
    x = 19,766.22

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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.