Home / 87,484.14-131,247.03-28,319.80

Finding the Fourth Proportional to 87,484.14, 131,247.03 and 28,319.80

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Solution

The fourth proportional to 87,484.14, 131,247.03 and 28,319.80 is: 42,486.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,484.14 : 131,247.03 = 28,319.80 : x
  2. Step 2: Convert to fraction form
    87,484.14/131,247.03 = 28,319.80/x
  3. Step 3: Cross multiply
    87,484.14x = 131,247.03 × 28,319.80
  4. Step 4: Simplify right side
    87,484.14x = 3,716,889,640.19
  5. Step 5: Solve for x
    x = 3,716,889,640.19/87,484.14
  6. Step 6: Final answer
    x = 42,486.44

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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.