Home / 87,635.88-120,937.51-49,913.64

Finding the Fourth Proportional to 87,635.88, 120,937.51 and 49,913.64

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Solution

The fourth proportional to 87,635.88, 120,937.51 and 49,913.64 is: 68,880.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.88 : 120,937.51 = 49,913.64 : x
  2. Step 2: Convert to fraction form
    87,635.88/120,937.51 = 49,913.64/x
  3. Step 3: Cross multiply
    87,635.88x = 120,937.51 × 49,913.64
  4. Step 4: Simplify right side
    87,635.88x = 6,036,430,731.95
  5. Step 5: Solve for x
    x = 6,036,430,731.95/87,635.88
  6. Step 6: Final answer
    x = 68,880.82

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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.