Home / 87,043.25-120,124.55-49,329.65

Finding the Fourth Proportional to 87,043.25, 120,124.55 and 49,329.65

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Solution

The fourth proportional to 87,043.25, 120,124.55 and 49,329.65 is: 68,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,043.25 : 120,124.55 = 49,329.65 : x
  2. Step 2: Convert to fraction form
    87,043.25/120,124.55 = 49,329.65/x
  3. Step 3: Cross multiply
    87,043.25x = 120,124.55 × 49,329.65
  4. Step 4: Simplify right side
    87,043.25x = 5,925,701,761.26
  5. Step 5: Solve for x
    x = 5,925,701,761.26/87,043.25
  6. Step 6: Final answer
    x = 68,077.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.