Home / 87,618-120,913.04-49,892.28

Finding the Fourth Proportional to 87,618, 120,913.04 and 49,892.28

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Solution

The fourth proportional to 87,618, 120,913.04 and 49,892.28 is: 68,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,618 : 120,913.04 = 49,892.28 : x
  2. Step 2: Convert to fraction form
    87,618/120,913.04 = 49,892.28/x
  3. Step 3: Cross multiply
    87,618x = 120,913.04 × 49,892.28
  4. Step 4: Simplify right side
    87,618x = 6,032,627,247.33
  5. Step 5: Solve for x
    x = 6,032,627,247.33/87,618
  6. Step 6: Final answer
    x = 68,851.46

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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.