Home / 61,239.30-91,867.32-21,786.90

Finding the Fourth Proportional to 61,239.30, 91,867.32 and 21,786.90

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Solution

The fourth proportional to 61,239.30, 91,867.32 and 21,786.90 is: 32,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,239.30 : 91,867.32 = 21,786.90 : x
  2. Step 2: Convert to fraction form
    61,239.30/91,867.32 = 21,786.90/x
  3. Step 3: Cross multiply
    61,239.30x = 91,867.32 × 21,786.90
  4. Step 4: Simplify right side
    61,239.30x = 2,001,504,114.11
  5. Step 5: Solve for x
    x = 2,001,504,114.11/61,239.30
  6. Step 6: Final answer
    x = 32,683.33

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1.5x scale

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.