Home / 87,255.57-130,855.62-28,077.48

Finding the Fourth Proportional to 87,255.57, 130,855.62 and 28,077.48

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Solution

The fourth proportional to 87,255.57, 130,855.62 and 28,077.48 is: 42,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,255.57 : 130,855.62 = 28,077.48 : x
  2. Step 2: Convert to fraction form
    87,255.57/130,855.62 = 28,077.48/x
  3. Step 3: Cross multiply
    87,255.57x = 130,855.62 × 28,077.48
  4. Step 4: Simplify right side
    87,255.57x = 3,674,096,053.44
  5. Step 5: Solve for x
    x = 3,674,096,053.44/87,255.57
  6. Step 6: Final answer
    x = 42,107.30

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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.