Home / 42,936.64-64,398.08-11,764.64

Finding the Fourth Proportional to 42,936.64, 64,398.08 and 11,764.64

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Solution

The fourth proportional to 42,936.64, 64,398.08 and 11,764.64 is: 17,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,936.64 : 64,398.08 = 11,764.64 : x
  2. Step 2: Convert to fraction form
    42,936.64/64,398.08 = 11,764.64/x
  3. Step 3: Cross multiply
    42,936.64x = 64,398.08 × 11,764.64
  4. Step 4: Simplify right side
    42,936.64x = 757,620,227.89
  5. Step 5: Solve for x
    x = 757,620,227.89/42,936.64
  6. Step 6: Final answer
    x = 17,645.07

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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.