Home / 74,911.38-112,289.31-35,438.46

Finding the Fourth Proportional to 74,911.38, 112,289.31 and 35,438.46

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Solution

The fourth proportional to 74,911.38, 112,289.31 and 35,438.46 is: 53,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.38 : 112,289.31 = 35,438.46 : x
  2. Step 2: Convert to fraction form
    74,911.38/112,289.31 = 35,438.46/x
  3. Step 3: Cross multiply
    74,911.38x = 112,289.31 × 35,438.46
  4. Step 4: Simplify right side
    74,911.38x = 3,979,360,220.86
  5. Step 5: Solve for x
    x = 3,979,360,220.86/74,911.38
  6. Step 6: Final answer
    x = 53,120.90

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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.