Home / 50,876.16-70,209.68-28,215.60

Finding the Fourth Proportional to 50,876.16, 70,209.68 and 28,215.60

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Solution

The fourth proportional to 50,876.16, 70,209.68 and 28,215.60 is: 38,937.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,876.16 : 70,209.68 = 28,215.60 : x
  2. Step 2: Convert to fraction form
    50,876.16/70,209.68 = 28,215.60/x
  3. Step 3: Cross multiply
    50,876.16x = 70,209.68 × 28,215.60
  4. Step 4: Simplify right side
    50,876.16x = 1,981,008,247.01
  5. Step 5: Solve for x
    x = 1,981,008,247.01/50,876.16
  6. Step 6: Final answer
    x = 38,937.85

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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.