Home / 81,209.10-121,826.76-25,036.06

Finding the Fourth Proportional to 81,209.10, 121,826.76 and 25,036.06

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Solution

The fourth proportional to 81,209.10, 121,826.76 and 25,036.06 is: 37,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,209.10 : 121,826.76 = 25,036.06 : x
  2. Step 2: Convert to fraction form
    81,209.10/121,826.76 = 25,036.06/x
  3. Step 3: Cross multiply
    81,209.10x = 121,826.76 × 25,036.06
  4. Step 4: Simplify right side
    81,209.10x = 3,050,062,072.97
  5. Step 5: Solve for x
    x = 3,050,062,072.97/81,209.10
  6. Step 6: Final answer
    x = 37,558.13

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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.