Home / 72,133.54-99,581.61-49,738.66

Finding the Fourth Proportional to 72,133.54, 99,581.61 and 49,738.66

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Solution

The fourth proportional to 72,133.54, 99,581.61 and 49,738.66 is: 68,665.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,133.54 : 99,581.61 = 49,738.66 : x
  2. Step 2: Convert to fraction form
    72,133.54/99,581.61 = 49,738.66/x
  3. Step 3: Cross multiply
    72,133.54x = 99,581.61 × 49,738.66
  4. Step 4: Simplify right side
    72,133.54x = 4,953,055,842.04
  5. Step 5: Solve for x
    x = 4,953,055,842.04/72,133.54
  6. Step 6: Final answer
    x = 68,665.09

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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.