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Finding the Fourth Proportional to 79,833.36, 119,824.20 and 40,418.40

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Solution

The fourth proportional to 79,833.36, 119,824.20 and 40,418.40 is: 60,665.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,833.36 : 119,824.20 = 40,418.40 : x
  2. Step 2: Convert to fraction form
    79,833.36/119,824.20 = 40,418.40/x
  3. Step 3: Cross multiply
    79,833.36x = 119,824.20 × 40,418.40
  4. Step 4: Simplify right side
    79,833.36x = 4,843,102,445.28
  5. Step 5: Solve for x
    x = 4,843,102,445.28/79,833.36
  6. Step 6: Final answer
    x = 60,665.15

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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.