Home / 47,177.21-70,765.82-12,116.90

Finding the Fourth Proportional to 47,177.21, 70,765.82 and 12,116.90

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Solution

The fourth proportional to 47,177.21, 70,765.82 and 12,116.90 is: 18,175.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,177.21 : 70,765.82 = 12,116.90 : x
  2. Step 2: Convert to fraction form
    47,177.21/70,765.82 = 12,116.90/x
  3. Step 3: Cross multiply
    47,177.21x = 70,765.82 × 12,116.90
  4. Step 4: Simplify right side
    47,177.21x = 857,462,364.36
  5. Step 5: Solve for x
    x = 857,462,364.36/47,177.21
  6. Step 6: Final answer
    x = 18,175.35

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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.