Home / 56,296.56-77,689.20-31,149.84

Finding the Fourth Proportional to 56,296.56, 77,689.20 and 31,149.84

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Solution

The fourth proportional to 56,296.56, 77,689.20 and 31,149.84 is: 42,986.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,296.56 : 77,689.20 = 31,149.84 : x
  2. Step 2: Convert to fraction form
    56,296.56/77,689.20 = 31,149.84/x
  3. Step 3: Cross multiply
    56,296.56x = 77,689.20 × 31,149.84
  4. Step 4: Simplify right side
    56,296.56x = 2,420,006,149.73
  5. Step 5: Solve for x
    x = 2,420,006,149.73/56,296.56
  6. Step 6: Final answer
    x = 42,986.75

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1.5x scale

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.