Home / 87,018.44-120,084.47-48,784.21

Finding the Fourth Proportional to 87,018.44, 120,084.47 and 48,784.21

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Solution

The fourth proportional to 87,018.44, 120,084.47 and 48,784.21 is: 67,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,018.44 : 120,084.47 = 48,784.21 : x
  2. Step 2: Convert to fraction form
    87,018.44/120,084.47 = 48,784.21/x
  3. Step 3: Cross multiply
    87,018.44x = 120,084.47 × 48,784.21
  4. Step 4: Simplify right side
    87,018.44x = 5,858,225,915.44
  5. Step 5: Solve for x
    x = 5,858,225,915.44/87,018.44
  6. Step 6: Final answer
    x = 67,321.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.