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Finding the Fourth Proportional to 40,042.40, 60,112.20 and 22,287.20

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Solution

The fourth proportional to 40,042.40, 60,112.20 and 22,287.20 is: 33,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,042.40 : 60,112.20 = 22,287.20 : x
  2. Step 2: Convert to fraction form
    40,042.40/60,112.20 = 22,287.20/x
  3. Step 3: Cross multiply
    40,042.40x = 60,112.20 × 22,287.20
  4. Step 4: Simplify right side
    40,042.40x = 1,339,732,623.84
  5. Step 5: Solve for x
    x = 1,339,732,623.84/40,042.40
  6. Step 6: Final answer
    x = 33,457.85

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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.