Home / 70,738.20-106,000.38-47,322.72

Finding the Fourth Proportional to 70,738.20, 106,000.38 and 47,322.72

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Solution

The fourth proportional to 70,738.20, 106,000.38 and 47,322.72 is: 70,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,738.20 : 106,000.38 = 47,322.72 : x
  2. Step 2: Convert to fraction form
    70,738.20/106,000.38 = 47,322.72/x
  3. Step 3: Cross multiply
    70,738.20x = 106,000.38 × 47,322.72
  4. Step 4: Simplify right side
    70,738.20x = 5,016,226,302.63
  5. Step 5: Solve for x
    x = 5,016,226,302.63/70,738.20
  6. Step 6: Final answer
    x = 70,912.55

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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.