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Finding the Fourth Proportional to 50,860, 70,191.12 and 28,508.32

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Solution

The fourth proportional to 50,860, 70,191.12 and 28,508.32 is: 39,343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,860 : 70,191.12 = 28,508.32 : x
  2. Step 2: Convert to fraction form
    50,860/70,191.12 = 28,508.32/x
  3. Step 3: Cross multiply
    50,860x = 70,191.12 × 28,508.32
  4. Step 4: Simplify right side
    50,860x = 2,001,030,910.12
  5. Step 5: Solve for x
    x = 2,001,030,910.12/50,860
  6. Step 6: Final answer
    x = 39,343.90

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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.