Home / 47,120.61-70,677.45-13,843.28

Finding the Fourth Proportional to 47,120.61, 70,677.45 and 13,843.28

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Solution

The fourth proportional to 47,120.61, 70,677.45 and 13,843.28 is: 20,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,120.61 : 70,677.45 = 13,843.28 : x
  2. Step 2: Convert to fraction form
    47,120.61/70,677.45 = 13,843.28/x
  3. Step 3: Cross multiply
    47,120.61x = 70,677.45 × 13,843.28
  4. Step 4: Simplify right side
    47,120.61x = 978,407,376.65
  5. Step 5: Solve for x
    x = 978,407,376.65/47,120.61
  6. Step 6: Final answer
    x = 20,763.89

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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.