Home / 61,170.36-91,764.66-21,724.16

Finding the Fourth Proportional to 61,170.36, 91,764.66 and 21,724.16

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Solution

The fourth proportional to 61,170.36, 91,764.66 and 21,724.16 is: 32,589.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,170.36 : 91,764.66 = 21,724.16 : x
  2. Step 2: Convert to fraction form
    61,170.36/91,764.66 = 21,724.16/x
  3. Step 3: Cross multiply
    61,170.36x = 91,764.66 × 21,724.16
  4. Step 4: Simplify right side
    61,170.36x = 1,993,510,156.19
  5. Step 5: Solve for x
    x = 1,993,510,156.19/61,170.36
  6. Step 6: Final answer
    x = 32,589.48

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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.