Home / 87,885.10-131,915.14-48,460.78

Finding the Fourth Proportional to 87,885.10, 131,915.14 and 48,460.78

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Solution

The fourth proportional to 87,885.10, 131,915.14 and 48,460.78 is: 72,739.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,885.10 : 131,915.14 = 48,460.78 : x
  2. Step 2: Convert to fraction form
    87,885.10/131,915.14 = 48,460.78/x
  3. Step 3: Cross multiply
    87,885.10x = 131,915.14 × 48,460.78
  4. Step 4: Simplify right side
    87,885.10x = 6,392,710,578.21
  5. Step 5: Solve for x
    x = 6,392,710,578.21/87,885.10
  6. Step 6: Final answer
    x = 72,739.41

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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.