Home / 50,800.38-70,103.78-28,139.30

Finding the Fourth Proportional to 50,800.38, 70,103.78 and 28,139.30

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Solution

The fourth proportional to 50,800.38, 70,103.78 and 28,139.30 is: 38,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.38 : 70,103.78 = 28,139.30 : x
  2. Step 2: Convert to fraction form
    50,800.38/70,103.78 = 28,139.30/x
  3. Step 3: Cross multiply
    50,800.38x = 70,103.78 × 28,139.30
  4. Step 4: Simplify right side
    50,800.38x = 1,972,670,946.04
  5. Step 5: Solve for x
    x = 1,972,670,946.04/50,800.38
  6. Step 6: Final answer
    x = 38,831.82

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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.