Home / 72,554.19-108,810.62-28,171.45

Finding the Fourth Proportional to 72,554.19, 108,810.62 and 28,171.45

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Solution

The fourth proportional to 72,554.19, 108,810.62 and 28,171.45 is: 42,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,554.19 : 108,810.62 = 28,171.45 : x
  2. Step 2: Convert to fraction form
    72,554.19/108,810.62 = 28,171.45/x
  3. Step 3: Cross multiply
    72,554.19x = 108,810.62 × 28,171.45
  4. Step 4: Simplify right side
    72,554.19x = 3,065,352,940.80
  5. Step 5: Solve for x
    x = 3,065,352,940.80/72,554.19
  6. Step 6: Final answer
    x = 42,249.15

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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.