Home / 54,738.50-82,047.77-21,421.95

Finding the Fourth Proportional to 54,738.50, 82,047.77 and 21,421.95

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Solution

The fourth proportional to 54,738.50, 82,047.77 and 21,421.95 is: 32,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,738.50 : 82,047.77 = 21,421.95 : x
  2. Step 2: Convert to fraction form
    54,738.50/82,047.77 = 21,421.95/x
  3. Step 3: Cross multiply
    54,738.50x = 82,047.77 × 21,421.95
  4. Step 4: Simplify right side
    54,738.50x = 1,757,623,280.11
  5. Step 5: Solve for x
    x = 1,757,623,280.11/54,738.50
  6. Step 6: Final answer
    x = 32,109.45

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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.