Home / 56,917.92-78,551.04-31,429.14

Finding the Fourth Proportional to 56,917.92, 78,551.04 and 31,429.14

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Solution

The fourth proportional to 56,917.92, 78,551.04 and 31,429.14 is: 43,374.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917.92 : 78,551.04 = 31,429.14 : x
  2. Step 2: Convert to fraction form
    56,917.92/78,551.04 = 31,429.14/x
  3. Step 3: Cross multiply
    56,917.92x = 78,551.04 × 31,429.14
  4. Step 4: Simplify right side
    56,917.92x = 2,468,791,633.31
  5. Step 5: Solve for x
    x = 2,468,791,633.31/56,917.92
  6. Step 6: Final answer
    x = 43,374.59

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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.