Home / 47,143.38-70,707.78-30,620.60

Finding the Fourth Proportional to 47,143.38, 70,707.78 and 30,620.60

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Solution

The fourth proportional to 47,143.38, 70,707.78 and 30,620.60 is: 45,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.38 : 70,707.78 = 30,620.60 : x
  2. Step 2: Convert to fraction form
    47,143.38/70,707.78 = 30,620.60/x
  3. Step 3: Cross multiply
    47,143.38x = 70,707.78 × 30,620.60
  4. Step 4: Simplify right side
    47,143.38x = 2,165,114,294.73
  5. Step 5: Solve for x
    x = 2,165,114,294.73/47,143.38
  6. Step 6: Final answer
    x = 45,926.16

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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.