Home / 47,378.23-71,061.82-12,320.62

Finding the Fourth Proportional to 47,378.23, 71,061.82 and 12,320.62

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Solution

The fourth proportional to 47,378.23, 71,061.82 and 12,320.62 is: 18,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,378.23 : 71,061.82 = 12,320.62 : x
  2. Step 2: Convert to fraction form
    47,378.23/71,061.82 = 12,320.62/x
  3. Step 3: Cross multiply
    47,378.23x = 71,061.82 × 12,320.62
  4. Step 4: Simplify right side
    47,378.23x = 875,525,680.73
  5. Step 5: Solve for x
    x = 875,525,680.73/47,378.23
  6. Step 6: Final answer
    x = 18,479.49

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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.