Home / 49,230.50-67,938.12-30,378.56

Finding the Fourth Proportional to 49,230.50, 67,938.12 and 30,378.56

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Solution

The fourth proportional to 49,230.50, 67,938.12 and 30,378.56 is: 41,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,230.50 : 67,938.12 = 30,378.56 : x
  2. Step 2: Convert to fraction form
    49,230.50/67,938.12 = 30,378.56/x
  3. Step 3: Cross multiply
    49,230.50x = 67,938.12 × 30,378.56
  4. Step 4: Simplify right side
    49,230.50x = 2,063,862,254.71
  5. Step 5: Solve for x
    x = 2,063,862,254.71/49,230.50
  6. Step 6: Final answer
    x = 41,922.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.