Home / 56,761.92-85,195.32-28,701.72

Finding the Fourth Proportional to 56,761.92, 85,195.32 and 28,701.72

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Solution

The fourth proportional to 56,761.92, 85,195.32 and 28,701.72 is: 43,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,761.92 : 85,195.32 = 28,701.72 : x
  2. Step 2: Convert to fraction form
    56,761.92/85,195.32 = 28,701.72/x
  3. Step 3: Cross multiply
    56,761.92x = 85,195.32 × 28,701.72
  4. Step 4: Simplify right side
    56,761.92x = 2,445,252,219.95
  5. Step 5: Solve for x
    x = 2,445,252,219.95/56,761.92
  6. Step 6: Final answer
    x = 43,079.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.