Home / 51,678.72-71,317.12-29,320.96

Finding the Fourth Proportional to 51,678.72, 71,317.12 and 29,320.96

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Solution

The fourth proportional to 51,678.72, 71,317.12 and 29,320.96 is: 40,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,678.72 : 71,317.12 = 29,320.96 : x
  2. Step 2: Convert to fraction form
    51,678.72/71,317.12 = 29,320.96/x
  3. Step 3: Cross multiply
    51,678.72x = 71,317.12 × 29,320.96
  4. Step 4: Simplify right side
    51,678.72x = 2,091,086,422.84
  5. Step 5: Solve for x
    x = 2,091,086,422.84/51,678.72
  6. Step 6: Final answer
    x = 40,463.20

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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.