Home / 42,744.39-64,118.39-11,579.61

Finding the Fourth Proportional to 42,744.39, 64,118.39 and 11,579.61

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Solution

The fourth proportional to 42,744.39, 64,118.39 and 11,579.61 is: 17,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,744.39 : 64,118.39 = 11,579.61 : x
  2. Step 2: Convert to fraction form
    42,744.39/64,118.39 = 11,579.61/x
  3. Step 3: Cross multiply
    42,744.39x = 64,118.39 × 11,579.61
  4. Step 4: Simplify right side
    42,744.39x = 742,465,892.13
  5. Step 5: Solve for x
    x = 742,465,892.13/42,744.39
  6. Step 6: Final answer
    x = 17,369.90

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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.