Home / 87,534.51-131,274.21-28,356.45

Finding the Fourth Proportional to 87,534.51, 131,274.21 and 28,356.45

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Solution

The fourth proportional to 87,534.51, 131,274.21 and 28,356.45 is: 42,525.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,534.51 : 131,274.21 = 28,356.45 : x
  2. Step 2: Convert to fraction form
    87,534.51/131,274.21 = 28,356.45/x
  3. Step 3: Cross multiply
    87,534.51x = 131,274.21 × 28,356.45
  4. Step 4: Simplify right side
    87,534.51x = 3,722,469,915.78
  5. Step 5: Solve for x
    x = 3,722,469,915.78/87,534.51
  6. Step 6: Final answer
    x = 42,525.74

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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.