Home / 47,113.20-70,660.20-20,443.08

Finding the Fourth Proportional to 47,113.20, 70,660.20 and 20,443.08

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Solution

The fourth proportional to 47,113.20, 70,660.20 and 20,443.08 is: 30,660.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,113.20 : 70,660.20 = 20,443.08 : x
  2. Step 2: Convert to fraction form
    47,113.20/70,660.20 = 20,443.08/x
  3. Step 3: Cross multiply
    47,113.20x = 70,660.20 × 20,443.08
  4. Step 4: Simplify right side
    47,113.20x = 1,444,512,121.42
  5. Step 5: Solve for x
    x = 1,444,512,121.42/47,113.20
  6. Step 6: Final answer
    x = 30,660.45

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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.