Home / 42,769.25-64,154.10-11,604.50

Finding the Fourth Proportional to 42,769.25, 64,154.10 and 11,604.50

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Solution

The fourth proportional to 42,769.25, 64,154.10 and 11,604.50 is: 17,406.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769.25 : 64,154.10 = 11,604.50 : x
  2. Step 2: Convert to fraction form
    42,769.25/64,154.10 = 11,604.50/x
  3. Step 3: Cross multiply
    42,769.25x = 64,154.10 × 11,604.50
  4. Step 4: Simplify right side
    42,769.25x = 744,476,253.45
  5. Step 5: Solve for x
    x = 744,476,253.45/42,769.25
  6. Step 6: Final answer
    x = 17,406.81

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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.