Home / 83,670.10-125,335.05-51,982.90

Finding the Fourth Proportional to 83,670.10, 125,335.05 and 51,982.90

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Solution

The fourth proportional to 83,670.10, 125,335.05 and 51,982.90 is: 77,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,670.10 : 125,335.05 = 51,982.90 : x
  2. Step 2: Convert to fraction form
    83,670.10/125,335.05 = 51,982.90/x
  3. Step 3: Cross multiply
    83,670.10x = 125,335.05 × 51,982.90
  4. Step 4: Simplify right side
    83,670.10x = 6,515,279,370.65
  5. Step 5: Solve for x
    x = 6,515,279,370.65/83,670.10
  6. Step 6: Final answer
    x = 77,868.67

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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.