Home / 81,085.18-111,877.58-49,252.18

Finding the Fourth Proportional to 81,085.18, 111,877.58 and 49,252.18

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Solution

The fourth proportional to 81,085.18, 111,877.58 and 49,252.18 is: 67,955.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,085.18 : 111,877.58 = 49,252.18 : x
  2. Step 2: Convert to fraction form
    81,085.18/111,877.58 = 49,252.18/x
  3. Step 3: Cross multiply
    81,085.18x = 111,877.58 × 49,252.18
  4. Step 4: Simplify right side
    81,085.18x = 5,510,214,708.12
  5. Step 5: Solve for x
    x = 5,510,214,708.12/81,085.18
  6. Step 6: Final answer
    x = 67,955.88

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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.