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Finding the Fourth Proportional to 79,853.60, 119,737.20 and 33,111.20

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Solution

The fourth proportional to 79,853.60, 119,737.20 and 33,111.20 is: 49,648.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,853.60 : 119,737.20 = 33,111.20 : x
  2. Step 2: Convert to fraction form
    79,853.60/119,737.20 = 33,111.20/x
  3. Step 3: Cross multiply
    79,853.60x = 119,737.20 × 33,111.20
  4. Step 4: Simplify right side
    79,853.60x = 3,964,642,376.64
  5. Step 5: Solve for x
    x = 3,964,642,376.64/79,853.60
  6. Step 6: Final answer
    x = 49,648.89

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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.