Home / 87,677.81-131,532.21-28,503.06

Finding the Fourth Proportional to 87,677.81, 131,532.21 and 28,503.06

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Solution

The fourth proportional to 87,677.81, 131,532.21 and 28,503.06 is: 42,759.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,677.81 : 131,532.21 = 28,503.06 : x
  2. Step 2: Convert to fraction form
    87,677.81/131,532.21 = 28,503.06/x
  3. Step 3: Cross multiply
    87,677.81x = 131,532.21 × 28,503.06
  4. Step 4: Simplify right side
    87,677.81x = 3,749,070,473.56
  5. Step 5: Solve for x
    x = 3,749,070,473.56/87,677.81
  6. Step 6: Final answer
    x = 42,759.63

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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.