Home / 81,610.12-112,650.06-51,446.26

Finding the Fourth Proportional to 81,610.12, 112,650.06 and 51,446.26

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Solution

The fourth proportional to 81,610.12, 112,650.06 and 51,446.26 is: 71,013.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,610.12 : 112,650.06 = 51,446.26 : x
  2. Step 2: Convert to fraction form
    81,610.12/112,650.06 = 51,446.26/x
  3. Step 3: Cross multiply
    81,610.12x = 112,650.06 × 51,446.26
  4. Step 4: Simplify right side
    81,610.12x = 5,795,424,275.78
  5. Step 5: Solve for x
    x = 5,795,424,275.78/81,610.12
  6. Step 6: Final answer
    x = 71,013.55

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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.