Home / 81,181.34-112,032.57-45,371.44

Finding the Fourth Proportional to 81,181.34, 112,032.57 and 45,371.44

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Solution

The fourth proportional to 81,181.34, 112,032.57 and 45,371.44 is: 62,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,181.34 : 112,032.57 = 45,371.44 : x
  2. Step 2: Convert to fraction form
    81,181.34/112,032.57 = 45,371.44/x
  3. Step 3: Cross multiply
    81,181.34x = 112,032.57 × 45,371.44
  4. Step 4: Simplify right side
    81,181.34x = 5,083,079,082.77
  5. Step 5: Solve for x
    x = 5,083,079,082.77/81,181.34
  6. Step 6: Final answer
    x = 62,613.89

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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.