Home / 80,448.12-120,685.68-29,850.12

Finding the Fourth Proportional to 80,448.12, 120,685.68 and 29,850.12

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Solution

The fourth proportional to 80,448.12, 120,685.68 and 29,850.12 is: 44,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,448.12 : 120,685.68 = 29,850.12 : x
  2. Step 2: Convert to fraction form
    80,448.12/120,685.68 = 29,850.12/x
  3. Step 3: Cross multiply
    80,448.12x = 120,685.68 × 29,850.12
  4. Step 4: Simplify right side
    80,448.12x = 3,602,482,030.28
  5. Step 5: Solve for x
    x = 3,602,482,030.28/80,448.12
  6. Step 6: Final answer
    x = 44,780.19

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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.