Home / 56,512.62-77,987.16-31,019.04

Finding the Fourth Proportional to 56,512.62, 77,987.16 and 31,019.04

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Solution

The fourth proportional to 56,512.62, 77,987.16 and 31,019.04 is: 42,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,512.62 : 77,987.16 = 31,019.04 : x
  2. Step 2: Convert to fraction form
    56,512.62/77,987.16 = 31,019.04/x
  3. Step 3: Cross multiply
    56,512.62x = 77,987.16 × 31,019.04
  4. Step 4: Simplify right side
    56,512.62x = 2,419,086,835.53
  5. Step 5: Solve for x
    x = 2,419,086,835.53/56,512.62
  6. Step 6: Final answer
    x = 42,806.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.