Home / 57,163.35-78,878.30-31,666.17

Finding the Fourth Proportional to 57,163.35, 78,878.30 and 31,666.17

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Solution

The fourth proportional to 57,163.35, 78,878.30 and 31,666.17 is: 43,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,163.35 : 78,878.30 = 31,666.17 : x
  2. Step 2: Convert to fraction form
    57,163.35/78,878.30 = 31,666.17/x
  3. Step 3: Cross multiply
    57,163.35x = 78,878.30 × 31,666.17
  4. Step 4: Simplify right side
    57,163.35x = 2,497,773,498.78
  5. Step 5: Solve for x
    x = 2,497,773,498.78/57,163.35
  6. Step 6: Final answer
    x = 43,695.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.