Home / 51,168.12-76,692-19,557.36

Finding the Fourth Proportional to 51,168.12, 76,692 and 19,557.36

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Solution

The fourth proportional to 51,168.12, 76,692 and 19,557.36 is: 29,313.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,168.12 : 76,692 = 19,557.36 : x
  2. Step 2: Convert to fraction form
    51,168.12/76,692 = 19,557.36/x
  3. Step 3: Cross multiply
    51,168.12x = 76,692 × 19,557.36
  4. Step 4: Simplify right side
    51,168.12x = 1,499,893,053.12
  5. Step 5: Solve for x
    x = 1,499,893,053.12/51,168.12
  6. Step 6: Final answer
    x = 29,313.04

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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.