Home / 87,570.25-131,343.06-28,406.44

Finding the Fourth Proportional to 87,570.25, 131,343.06 and 28,406.44

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Solution

The fourth proportional to 87,570.25, 131,343.06 and 28,406.44 is: 42,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,570.25 : 131,343.06 = 28,406.44 : x
  2. Step 2: Convert to fraction form
    87,570.25/131,343.06 = 28,406.44/x
  3. Step 3: Cross multiply
    87,570.25x = 131,343.06 × 28,406.44
  4. Step 4: Simplify right side
    87,570.25x = 3,730,988,753.31
  5. Step 5: Solve for x
    x = 3,730,988,753.31/87,570.25
  6. Step 6: Final answer
    x = 42,605.67

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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.