Home / 47,140.62-70,693.92-13,851.78

Finding the Fourth Proportional to 47,140.62, 70,693.92 and 13,851.78

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Solution

The fourth proportional to 47,140.62, 70,693.92 and 13,851.78 is: 20,772.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,140.62 : 70,693.92 = 13,851.78 : x
  2. Step 2: Convert to fraction form
    47,140.62/70,693.92 = 13,851.78/x
  3. Step 3: Cross multiply
    47,140.62x = 70,693.92 × 13,851.78
  4. Step 4: Simplify right side
    47,140.62x = 979,236,627.18
  5. Step 5: Solve for x
    x = 979,236,627.18/47,140.62
  6. Step 6: Final answer
    x = 20,772.67

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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.