Home / 69,722.60-104,520.54-28,141.16

Finding the Fourth Proportional to 69,722.60, 104,520.54 and 28,141.16

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Solution

The fourth proportional to 69,722.60, 104,520.54 and 28,141.16 is: 42,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,722.60 : 104,520.54 = 28,141.16 : x
  2. Step 2: Convert to fraction form
    69,722.60/104,520.54 = 28,141.16/x
  3. Step 3: Cross multiply
    69,722.60x = 104,520.54 × 28,141.16
  4. Step 4: Simplify right side
    69,722.60x = 2,941,329,239.43
  5. Step 5: Solve for x
    x = 2,941,329,239.43/69,722.60
  6. Step 6: Final answer
    x = 42,186.17

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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.