Home / 83,632.05-115,359.74-49,616.45

Finding the Fourth Proportional to 83,632.05, 115,359.74 and 49,616.45

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Solution

The fourth proportional to 83,632.05, 115,359.74 and 49,616.45 is: 68,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,632.05 : 115,359.74 = 49,616.45 : x
  2. Step 2: Convert to fraction form
    83,632.05/115,359.74 = 49,616.45/x
  3. Step 3: Cross multiply
    83,632.05x = 115,359.74 × 49,616.45
  4. Step 4: Simplify right side
    83,632.05x = 5,723,739,946.84
  5. Step 5: Solve for x
    x = 5,723,739,946.84/83,632.05
  6. Step 6: Final answer
    x = 68,439.55

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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.