Home / 47,175.40-70,764.18-12,115.36

Finding the Fourth Proportional to 47,175.40, 70,764.18 and 12,115.36

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Solution

The fourth proportional to 47,175.40, 70,764.18 and 12,115.36 is: 18,173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,175.40 : 70,764.18 = 12,115.36 : x
  2. Step 2: Convert to fraction form
    47,175.40/70,764.18 = 12,115.36/x
  3. Step 3: Cross multiply
    47,175.40x = 70,764.18 × 12,115.36
  4. Step 4: Simplify right side
    47,175.40x = 857,333,515.80
  5. Step 5: Solve for x
    x = 857,333,515.80/47,175.40
  6. Step 6: Final answer
    x = 18,173.32

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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.