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Finding the Fourth Proportional to 80,373.35, 120,555.15 and 35,988.18

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Solution

The fourth proportional to 80,373.35, 120,555.15 and 35,988.18 is: 53,980.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,373.35 : 120,555.15 = 35,988.18 : x
  2. Step 2: Convert to fraction form
    80,373.35/120,555.15 = 35,988.18/x
  3. Step 3: Cross multiply
    80,373.35x = 120,555.15 × 35,988.18
  4. Step 4: Simplify right side
    80,373.35x = 4,338,560,438.13
  5. Step 5: Solve for x
    x = 4,338,560,438.13/80,373.35
  6. Step 6: Final answer
    x = 53,980.09

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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.