Home / 56,830.44-84,691.56-55,120.20

Finding the Fourth Proportional to 56,830.44, 84,691.56 and 55,120.20

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Solution

The fourth proportional to 56,830.44, 84,691.56 and 55,120.20 is: 82,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,830.44 : 84,691.56 = 55,120.20 : x
  2. Step 2: Convert to fraction form
    56,830.44/84,691.56 = 55,120.20/x
  3. Step 3: Cross multiply
    56,830.44x = 84,691.56 × 55,120.20
  4. Step 4: Simplify right side
    56,830.44x = 4,668,215,725.51
  5. Step 5: Solve for x
    x = 4,668,215,725.51/56,830.44
  6. Step 6: Final answer
    x = 82,142.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.