Home / 55,382.74-76,427.20-31,508.90

Finding the Fourth Proportional to 55,382.74, 76,427.20 and 31,508.90

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Solution

The fourth proportional to 55,382.74, 76,427.20 and 31,508.90 is: 43,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,382.74 : 76,427.20 = 31,508.90 : x
  2. Step 2: Convert to fraction form
    55,382.74/76,427.20 = 31,508.90/x
  3. Step 3: Cross multiply
    55,382.74x = 76,427.20 × 31,508.90
  4. Step 4: Simplify right side
    55,382.74x = 2,408,137,271.92
  5. Step 5: Solve for x
    x = 2,408,137,271.92/55,382.74
  6. Step 6: Final answer
    x = 43,481.73

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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.