Home / 47,121.18-70,705.70-31,337.20

Finding the Fourth Proportional to 47,121.18, 70,705.70 and 31,337.20

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Solution

The fourth proportional to 47,121.18, 70,705.70 and 31,337.20 is: 47,021.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,121.18 : 70,705.70 = 31,337.20 : x
  2. Step 2: Convert to fraction form
    47,121.18/70,705.70 = 31,337.20/x
  3. Step 3: Cross multiply
    47,121.18x = 70,705.70 × 31,337.20
  4. Step 4: Simplify right side
    47,121.18x = 2,215,718,662.04
  5. Step 5: Solve for x
    x = 2,215,718,662.04/47,121.18
  6. Step 6: Final answer
    x = 47,021.71

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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.