Home / 54,740.35-81,905.49-38,981.80

Finding the Fourth Proportional to 54,740.35, 81,905.49 and 38,981.80

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Solution

The fourth proportional to 54,740.35, 81,905.49 and 38,981.80 is: 58,326.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,740.35 : 81,905.49 = 38,981.80 : x
  2. Step 2: Convert to fraction form
    54,740.35/81,905.49 = 38,981.80/x
  3. Step 3: Cross multiply
    54,740.35x = 81,905.49 × 38,981.80
  4. Step 4: Simplify right side
    54,740.35x = 3,192,823,430.08
  5. Step 5: Solve for x
    x = 3,192,823,430.08/54,740.35
  6. Step 6: Final answer
    x = 58,326.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.