Home / 47,157.50-70,721.23-15,561.68

Finding the Fourth Proportional to 47,157.50, 70,721.23 and 15,561.68

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Solution

The fourth proportional to 47,157.50, 70,721.23 and 15,561.68 is: 23,337.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,157.50 : 70,721.23 = 15,561.68 : x
  2. Step 2: Convert to fraction form
    47,157.50/70,721.23 = 15,561.68/x
  3. Step 3: Cross multiply
    47,157.50x = 70,721.23 × 15,561.68
  4. Step 4: Simplify right side
    47,157.50x = 1,100,540,757.96
  5. Step 5: Solve for x
    x = 1,100,540,757.96/47,157.50
  6. Step 6: Final answer
    x = 23,337.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.