Home / 81,770.76-112,823.51-49,928.04

Finding the Fourth Proportional to 81,770.76, 112,823.51 and 49,928.04

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Solution

The fourth proportional to 81,770.76, 112,823.51 and 49,928.04 is: 68,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.76 : 112,823.51 = 49,928.04 : x
  2. Step 2: Convert to fraction form
    81,770.76/112,823.51 = 49,928.04/x
  3. Step 3: Cross multiply
    81,770.76x = 112,823.51 × 49,928.04
  4. Step 4: Simplify right side
    81,770.76x = 5,633,056,470.58
  5. Step 5: Solve for x
    x = 5,633,056,470.58/81,770.76
  6. Step 6: Final answer
    x = 68,888.40

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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.