Home / 71,400.18-107,164.52-38,148.67

Finding the Fourth Proportional to 71,400.18, 107,164.52 and 38,148.67

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Solution

The fourth proportional to 71,400.18, 107,164.52 and 38,148.67 is: 57,257.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,400.18 : 107,164.52 = 38,148.67 : x
  2. Step 2: Convert to fraction form
    71,400.18/107,164.52 = 38,148.67/x
  3. Step 3: Cross multiply
    71,400.18x = 107,164.52 × 38,148.67
  4. Step 4: Simplify right side
    71,400.18x = 4,088,183,995.46
  5. Step 5: Solve for x
    x = 4,088,183,995.46/71,400.18
  6. Step 6: Final answer
    x = 57,257.33

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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.