Home / 92,558.70-138,816.18-39,939.48

Finding the Fourth Proportional to 92,558.70, 138,816.18 and 39,939.48

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Solution

The fourth proportional to 92,558.70, 138,816.18 and 39,939.48 is: 59,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,558.70 : 138,816.18 = 39,939.48 : x
  2. Step 2: Convert to fraction form
    92,558.70/138,816.18 = 39,939.48/x
  3. Step 3: Cross multiply
    92,558.70x = 138,816.18 × 39,939.48
  4. Step 4: Simplify right side
    92,558.70x = 5,544,246,044.79
  5. Step 5: Solve for x
    x = 5,544,246,044.79/92,558.70
  6. Step 6: Final answer
    x = 59,899.78

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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.