Home / 43,108.89-64,679.13-18,155.22

Finding the Fourth Proportional to 43,108.89, 64,679.13 and 18,155.22

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Solution

The fourth proportional to 43,108.89, 64,679.13 and 18,155.22 is: 27,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,108.89 : 64,679.13 = 18,155.22 : x
  2. Step 2: Convert to fraction form
    43,108.89/64,679.13 = 18,155.22/x
  3. Step 3: Cross multiply
    43,108.89x = 64,679.13 × 18,155.22
  4. Step 4: Simplify right side
    43,108.89x = 1,174,263,834.56
  5. Step 5: Solve for x
    x = 1,174,263,834.56/43,108.89
  6. Step 6: Final answer
    x = 27,239.48

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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.