Home / 87,245.69-130,868.57-28,081.35

Finding the Fourth Proportional to 87,245.69, 130,868.57 and 28,081.35

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Solution

The fourth proportional to 87,245.69, 130,868.57 and 28,081.35 is: 42,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,245.69 : 130,868.57 = 28,081.35 : x
  2. Step 2: Convert to fraction form
    87,245.69/130,868.57 = 28,081.35/x
  3. Step 3: Cross multiply
    87,245.69x = 130,868.57 × 28,081.35
  4. Step 4: Simplify right side
    87,245.69x = 3,674,966,188.37
  5. Step 5: Solve for x
    x = 3,674,966,188.37/87,245.69
  6. Step 6: Final answer
    x = 42,122.04

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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.