Home / 84,590.27-126,872.88-51,301.40

Finding the Fourth Proportional to 84,590.27, 126,872.88 and 51,301.40

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Solution

The fourth proportional to 84,590.27, 126,872.88 and 51,301.40 is: 76,944.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,590.27 : 126,872.88 = 51,301.40 : x
  2. Step 2: Convert to fraction form
    84,590.27/126,872.88 = 51,301.40/x
  3. Step 3: Cross multiply
    84,590.27x = 126,872.88 × 51,301.40
  4. Step 4: Simplify right side
    84,590.27x = 6,508,756,366.03
  5. Step 5: Solve for x
    x = 6,508,756,366.03/84,590.27
  6. Step 6: Final answer
    x = 76,944.50

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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.