Home / 91,362.54-137,067.45-28,181.28

Finding the Fourth Proportional to 91,362.54, 137,067.45 and 28,181.28

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Solution

The fourth proportional to 91,362.54, 137,067.45 and 28,181.28 is: 42,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,362.54 : 137,067.45 = 28,181.28 : x
  2. Step 2: Convert to fraction form
    91,362.54/137,067.45 = 28,181.28/x
  3. Step 3: Cross multiply
    91,362.54x = 137,067.45 × 28,181.28
  4. Step 4: Simplify right side
    91,362.54x = 3,862,736,187.34
  5. Step 5: Solve for x
    x = 3,862,736,187.34/91,362.54
  6. Step 6: Final answer
    x = 42,279.21

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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.