Home / 42,748.65-64,126.62-11,162.91

Finding the Fourth Proportional to 42,748.65, 64,126.62 and 11,162.91

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Solution

The fourth proportional to 42,748.65, 64,126.62 and 11,162.91 is: 16,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.65 : 64,126.62 = 11,162.91 : x
  2. Step 2: Convert to fraction form
    42,748.65/64,126.62 = 11,162.91/x
  3. Step 3: Cross multiply
    42,748.65x = 64,126.62 × 11,162.91
  4. Step 4: Simplify right side
    42,748.65x = 715,839,687.66
  5. Step 5: Solve for x
    x = 715,839,687.66/42,748.65
  6. Step 6: Final answer
    x = 16,745.32

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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.