Home / 74,468.57-111,782.43-30,124.31

Finding the Fourth Proportional to 74,468.57, 111,782.43 and 30,124.31

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Solution

The fourth proportional to 74,468.57, 111,782.43 and 30,124.31 is: 45,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,468.57 : 111,782.43 = 30,124.31 : x
  2. Step 2: Convert to fraction form
    74,468.57/111,782.43 = 30,124.31/x
  3. Step 3: Cross multiply
    74,468.57x = 111,782.43 × 30,124.31
  4. Step 4: Simplify right side
    74,468.57x = 3,367,368,014.96
  5. Step 5: Solve for x
    x = 3,367,368,014.96/74,468.57
  6. Step 6: Final answer
    x = 45,218.65

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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.