Home / 56,121.29-77,447.82-30,627.86

Finding the Fourth Proportional to 56,121.29, 77,447.82 and 30,627.86

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Solution

The fourth proportional to 56,121.29, 77,447.82 and 30,627.86 is: 42,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.29 : 77,447.82 = 30,627.86 : x
  2. Step 2: Convert to fraction form
    56,121.29/77,447.82 = 30,627.86/x
  3. Step 3: Cross multiply
    56,121.29x = 77,447.82 × 30,627.86
  4. Step 4: Simplify right side
    56,121.29x = 2,372,060,601.03
  5. Step 5: Solve for x
    x = 2,372,060,601.03/56,121.29
  6. Step 6: Final answer
    x = 42,266.68

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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.