Home / 56,211.12-77,568.30-31,059

Finding the Fourth Proportional to 56,211.12, 77,568.30 and 31,059

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Solution

The fourth proportional to 56,211.12, 77,568.30 and 31,059 is: 42,859.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,211.12 : 77,568.30 = 31,059 : x
  2. Step 2: Convert to fraction form
    56,211.12/77,568.30 = 31,059/x
  3. Step 3: Cross multiply
    56,211.12x = 77,568.30 × 31,059
  4. Step 4: Simplify right side
    56,211.12x = 2,409,193,829.70
  5. Step 5: Solve for x
    x = 2,409,193,829.70/56,211.12
  6. Step 6: Final answer
    x = 42,859.74

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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.