Home / 74,296.45-111,444.29-18,136.86

Finding the Fourth Proportional to 74,296.45, 111,444.29 and 18,136.86

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Solution

The fourth proportional to 74,296.45, 111,444.29 and 18,136.86 is: 27,205.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,296.45 : 111,444.29 = 18,136.86 : x
  2. Step 2: Convert to fraction form
    74,296.45/111,444.29 = 18,136.86/x
  3. Step 3: Cross multiply
    74,296.45x = 111,444.29 × 18,136.86
  4. Step 4: Simplify right side
    74,296.45x = 2,021,249,112.96
  5. Step 5: Solve for x
    x = 2,021,249,112.96/74,296.45
  6. Step 6: Final answer
    x = 27,205.19

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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.