Home / 67,880.16-101,781.36-26,278.56

Finding the Fourth Proportional to 67,880.16, 101,781.36 and 26,278.56

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Solution

The fourth proportional to 67,880.16, 101,781.36 and 26,278.56 is: 39,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,880.16 : 101,781.36 = 26,278.56 : x
  2. Step 2: Convert to fraction form
    67,880.16/101,781.36 = 26,278.56/x
  3. Step 3: Cross multiply
    67,880.16x = 101,781.36 × 26,278.56
  4. Step 4: Simplify right side
    67,880.16x = 2,674,667,575.64
  5. Step 5: Solve for x
    x = 2,674,667,575.64/67,880.16
  6. Step 6: Final answer
    x = 39,402.79

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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.