Home / 50,781.03-70,082.12-28,125.53

Finding the Fourth Proportional to 50,781.03, 70,082.12 and 28,125.53

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Solution

The fourth proportional to 50,781.03, 70,082.12 and 28,125.53 is: 38,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,781.03 : 70,082.12 = 28,125.53 : x
  2. Step 2: Convert to fraction form
    50,781.03/70,082.12 = 28,125.53/x
  3. Step 3: Cross multiply
    50,781.03x = 70,082.12 × 28,125.53
  4. Step 4: Simplify right side
    50,781.03x = 1,971,096,768.52
  5. Step 5: Solve for x
    x = 1,971,096,768.52/50,781.03
  6. Step 6: Final answer
    x = 38,815.61

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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.