Home / 74,400.42-111,598.26-18,240.66

Finding the Fourth Proportional to 74,400.42, 111,598.26 and 18,240.66

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Solution

The fourth proportional to 74,400.42, 111,598.26 and 18,240.66 is: 27,360.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400.42 : 111,598.26 = 18,240.66 : x
  2. Step 2: Convert to fraction form
    74,400.42/111,598.26 = 18,240.66/x
  3. Step 3: Cross multiply
    74,400.42x = 111,598.26 × 18,240.66
  4. Step 4: Simplify right side
    74,400.42x = 2,035,625,917.25
  5. Step 5: Solve for x
    x = 2,035,625,917.25/74,400.42
  6. Step 6: Final answer
    x = 27,360.41

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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.