Home / 68,742.24-103,091.40-21,984

Finding the Fourth Proportional to 68,742.24, 103,091.40 and 21,984

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Solution

The fourth proportional to 68,742.24, 103,091.40 and 21,984 is: 32,968.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,742.24 : 103,091.40 = 21,984 : x
  2. Step 2: Convert to fraction form
    68,742.24/103,091.40 = 21,984/x
  3. Step 3: Cross multiply
    68,742.24x = 103,091.40 × 21,984
  4. Step 4: Simplify right side
    68,742.24x = 2,266,361,337.60
  5. Step 5: Solve for x
    x = 2,266,361,337.60/68,742.24
  6. Step 6: Final answer
    x = 32,968.98

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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.