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Finding the Fourth Proportional to 84,622.32, 126,934.40 and 40,253.60

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Solution

The fourth proportional to 84,622.32, 126,934.40 and 40,253.60 is: 60,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,622.32 : 126,934.40 = 40,253.60 : x
  2. Step 2: Convert to fraction form
    84,622.32/126,934.40 = 40,253.60/x
  3. Step 3: Cross multiply
    84,622.32x = 126,934.40 × 40,253.60
  4. Step 4: Simplify right side
    84,622.32x = 5,109,566,563.84
  5. Step 5: Solve for x
    x = 5,109,566,563.84/84,622.32
  6. Step 6: Final answer
    x = 60,380.84

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1.5x scale

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.