Home / 68,528.13-102,807.31-29,118.93

Finding the Fourth Proportional to 68,528.13, 102,807.31 and 29,118.93

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Solution

The fourth proportional to 68,528.13, 102,807.31 and 29,118.93 is: 43,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528.13 : 102,807.31 = 29,118.93 : x
  2. Step 2: Convert to fraction form
    68,528.13/102,807.31 = 29,118.93/x
  3. Step 3: Cross multiply
    68,528.13x = 102,807.31 × 29,118.93
  4. Step 4: Simplify right side
    68,528.13x = 2,993,638,276.54
  5. Step 5: Solve for x
    x = 2,993,638,276.54/68,528.13
  6. Step 6: Final answer
    x = 43,684.81

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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.