Home / 50,713.12-69,981.20-28,050.72

Finding the Fourth Proportional to 50,713.12, 69,981.20 and 28,050.72

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Solution

The fourth proportional to 50,713.12, 69,981.20 and 28,050.72 is: 38,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,713.12 : 69,981.20 = 28,050.72 : x
  2. Step 2: Convert to fraction form
    50,713.12/69,981.20 = 28,050.72/x
  3. Step 3: Cross multiply
    50,713.12x = 69,981.20 × 28,050.72
  4. Step 4: Simplify right side
    50,713.12x = 1,963,023,046.46
  5. Step 5: Solve for x
    x = 1,963,023,046.46/50,713.12
  6. Step 6: Final answer
    x = 38,708.39

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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.