Home / 50,489.70-75,686.25-18,891.18

Finding the Fourth Proportional to 50,489.70, 75,686.25 and 18,891.18

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Solution

The fourth proportional to 50,489.70, 75,686.25 and 18,891.18 is: 28,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,489.70 : 75,686.25 = 18,891.18 : x
  2. Step 2: Convert to fraction form
    50,489.70/75,686.25 = 18,891.18/x
  3. Step 3: Cross multiply
    50,489.70x = 75,686.25 × 18,891.18
  4. Step 4: Simplify right side
    50,489.70x = 1,429,802,572.28
  5. Step 5: Solve for x
    x = 1,429,802,572.28/50,489.70
  6. Step 6: Final answer
    x = 28,318.70

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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.