Home / 68,133.66-102,216.94-21,386.53

Finding the Fourth Proportional to 68,133.66, 102,216.94 and 21,386.53

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Solution

The fourth proportional to 68,133.66, 102,216.94 and 21,386.53 is: 32,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,133.66 : 102,216.94 = 21,386.53 : x
  2. Step 2: Convert to fraction form
    68,133.66/102,216.94 = 21,386.53/x
  3. Step 3: Cross multiply
    68,133.66x = 102,216.94 × 21,386.53
  4. Step 4: Simplify right side
    68,133.66x = 2,186,065,728.12
  5. Step 5: Solve for x
    x = 2,186,065,728.12/68,133.66
  6. Step 6: Final answer
    x = 32,084.96

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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.