Home / 50,729.20-70,009.52-28,373.20

Finding the Fourth Proportional to 50,729.20, 70,009.52 and 28,373.20

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Solution

The fourth proportional to 50,729.20, 70,009.52 and 28,373.20 is: 39,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.20 : 70,009.52 = 28,373.20 : x
  2. Step 2: Convert to fraction form
    50,729.20/70,009.52 = 28,373.20/x
  3. Step 3: Cross multiply
    50,729.20x = 70,009.52 × 28,373.20
  4. Step 4: Simplify right side
    50,729.20x = 1,986,394,112.86
  5. Step 5: Solve for x
    x = 1,986,394,112.86/50,729.20
  6. Step 6: Final answer
    x = 39,156.82

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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.