Home / 50,729.75-70,007.30-28,373.75

Finding the Fourth Proportional to 50,729.75, 70,007.30 and 28,373.75

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Solution

The fourth proportional to 50,729.75, 70,007.30 and 28,373.75 is: 39,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.75 : 70,007.30 = 28,373.75 : x
  2. Step 2: Convert to fraction form
    50,729.75/70,007.30 = 28,373.75/x
  3. Step 3: Cross multiply
    50,729.75x = 70,007.30 × 28,373.75
  4. Step 4: Simplify right side
    50,729.75x = 1,986,369,628.38
  5. Step 5: Solve for x
    x = 1,986,369,628.38/50,729.75
  6. Step 6: Final answer
    x = 39,155.91

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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.