Home / 84,626.72-126,815.28-47,135.14

Finding the Fourth Proportional to 84,626.72, 126,815.28 and 47,135.14

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Solution

The fourth proportional to 84,626.72, 126,815.28 and 47,135.14 is: 70,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,626.72 : 126,815.28 = 47,135.14 : x
  2. Step 2: Convert to fraction form
    84,626.72/126,815.28 = 47,135.14/x
  3. Step 3: Cross multiply
    84,626.72x = 126,815.28 × 47,135.14
  4. Step 4: Simplify right side
    84,626.72x = 5,977,455,976.94
  5. Step 5: Solve for x
    x = 5,977,455,976.94/84,626.72
  6. Step 6: Final answer
    x = 70,633.20

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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.