Home / 51,976.10-77,964.15-51,284.90

Finding the Fourth Proportional to 51,976.10, 77,964.15 and 51,284.90

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Solution

The fourth proportional to 51,976.10, 77,964.15 and 51,284.90 is: 76,927.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,976.10 : 77,964.15 = 51,284.90 : x
  2. Step 2: Convert to fraction form
    51,976.10/77,964.15 = 51,284.90/x
  3. Step 3: Cross multiply
    51,976.10x = 77,964.15 × 51,284.90
  4. Step 4: Simplify right side
    51,976.10x = 3,998,383,636.34
  5. Step 5: Solve for x
    x = 3,998,383,636.34/51,976.10
  6. Step 6: Final answer
    x = 76,927.35

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Similar ratio
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1.5x scale

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.