Home / 68,130.24-102,235.08-28,685.04

Finding the Fourth Proportional to 68,130.24, 102,235.08 and 28,685.04

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Solution

The fourth proportional to 68,130.24, 102,235.08 and 28,685.04 is: 43,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130.24 : 102,235.08 = 28,685.04 : x
  2. Step 2: Convert to fraction form
    68,130.24/102,235.08 = 28,685.04/x
  3. Step 3: Cross multiply
    68,130.24x = 102,235.08 × 28,685.04
  4. Step 4: Simplify right side
    68,130.24x = 2,932,617,359.20
  5. Step 5: Solve for x
    x = 2,932,617,359.20/68,130.24
  6. Step 6: Final answer
    x = 43,044.28

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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.