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Finding the Fourth Proportional to 80,060.34, 120,088.08 and 33,312

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Solution

The fourth proportional to 80,060.34, 120,088.08 and 33,312 is: 49,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,060.34 : 120,088.08 = 33,312 : x
  2. Step 2: Convert to fraction form
    80,060.34/120,088.08 = 33,312/x
  3. Step 3: Cross multiply
    80,060.34x = 120,088.08 × 33,312
  4. Step 4: Simplify right side
    80,060.34x = 4,000,374,120.96
  5. Step 5: Solve for x
    x = 4,000,374,120.96/80,060.34
  6. Step 6: Final answer
    x = 49,966.99

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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.