Home / 80,733.40-120,869.70-49,629.40

Finding the Fourth Proportional to 80,733.40, 120,869.70 and 49,629.40

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Solution

The fourth proportional to 80,733.40, 120,869.70 and 49,629.40 is: 74,302.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,733.40 : 120,869.70 = 49,629.40 : x
  2. Step 2: Convert to fraction form
    80,733.40/120,869.70 = 49,629.40/x
  3. Step 3: Cross multiply
    80,733.40x = 120,869.70 × 49,629.40
  4. Step 4: Simplify right side
    80,733.40x = 5,998,690,689.18
  5. Step 5: Solve for x
    x = 5,998,690,689.18/80,733.40
  6. Step 6: Final answer
    x = 74,302.47

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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.