Home / 87,250.70-130,888.42-28,072.60

Finding the Fourth Proportional to 87,250.70, 130,888.42 and 28,072.60

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Solution

The fourth proportional to 87,250.70, 130,888.42 and 28,072.60 is: 42,112.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,250.70 : 130,888.42 = 28,072.60 : x
  2. Step 2: Convert to fraction form
    87,250.70/130,888.42 = 28,072.60/x
  3. Step 3: Cross multiply
    87,250.70x = 130,888.42 × 28,072.60
  4. Step 4: Simplify right side
    87,250.70x = 3,674,378,259.29
  5. Step 5: Solve for x
    x = 3,674,378,259.29/87,250.70
  6. Step 6: Final answer
    x = 42,112.88

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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.