Home / 71,922.60-99,257.46-40,091.40

Finding the Fourth Proportional to 71,922.60, 99,257.46 and 40,091.40

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Solution

The fourth proportional to 71,922.60, 99,257.46 and 40,091.40 is: 55,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,922.60 : 99,257.46 = 40,091.40 : x
  2. Step 2: Convert to fraction form
    71,922.60/99,257.46 = 40,091.40/x
  3. Step 3: Cross multiply
    71,922.60x = 99,257.46 × 40,091.40
  4. Step 4: Simplify right side
    71,922.60x = 3,979,370,531.84
  5. Step 5: Solve for x
    x = 3,979,370,531.84/71,922.60
  6. Step 6: Final answer
    x = 55,328.51

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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.