Home / 68,740.24-103,088.40-21,982

Finding the Fourth Proportional to 68,740.24, 103,088.40 and 21,982

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Solution

The fourth proportional to 68,740.24, 103,088.40 and 21,982 is: 32,965.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,740.24 : 103,088.40 = 21,982 : x
  2. Step 2: Convert to fraction form
    68,740.24/103,088.40 = 21,982/x
  3. Step 3: Cross multiply
    68,740.24x = 103,088.40 × 21,982
  4. Step 4: Simplify right side
    68,740.24x = 2,266,089,208.80
  5. Step 5: Solve for x
    x = 2,266,089,208.80/68,740.24
  6. Step 6: Final answer
    x = 32,965.98

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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.