Home / 57,054.71-78,761.90-40,714.52

Finding the Fourth Proportional to 57,054.71, 78,761.90 and 40,714.52

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Solution

The fourth proportional to 57,054.71, 78,761.90 and 40,714.52 is: 56,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,054.71 : 78,761.90 = 40,714.52 : x
  2. Step 2: Convert to fraction form
    57,054.71/78,761.90 = 40,714.52/x
  3. Step 3: Cross multiply
    57,054.71x = 78,761.90 × 40,714.52
  4. Step 4: Simplify right side
    57,054.71x = 3,206,752,660.76
  5. Step 5: Solve for x
    x = 3,206,752,660.76/57,054.71
  6. Step 6: Final answer
    x = 56,204.87

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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.