Home / 47,125.76-70,693.79-20,453.42

Finding the Fourth Proportional to 47,125.76, 70,693.79 and 20,453.42

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Solution

The fourth proportional to 47,125.76, 70,693.79 and 20,453.42 is: 30,682.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,125.76 : 70,693.79 = 20,453.42 : x
  2. Step 2: Convert to fraction form
    47,125.76/70,693.79 = 20,453.42/x
  3. Step 3: Cross multiply
    47,125.76x = 70,693.79 × 20,453.42
  4. Step 4: Simplify right side
    47,125.76x = 1,445,929,475.93
  5. Step 5: Solve for x
    x = 1,445,929,475.93/47,125.76
  6. Step 6: Final answer
    x = 30,682.36

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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.