Home / 74,585.05-111,829.37-31,918.34

Finding the Fourth Proportional to 74,585.05, 111,829.37 and 31,918.34

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Solution

The fourth proportional to 74,585.05, 111,829.37 and 31,918.34 is: 47,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,585.05 : 111,829.37 = 31,918.34 : x
  2. Step 2: Convert to fraction form
    74,585.05/111,829.37 = 31,918.34/x
  3. Step 3: Cross multiply
    74,585.05x = 111,829.37 × 31,918.34
  4. Step 4: Simplify right side
    74,585.05x = 3,569,407,134.91
  5. Step 5: Solve for x
    x = 3,569,407,134.91/74,585.05
  6. Step 6: Final answer
    x = 47,856.87

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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.