Home / 80,916.11-111,664.73-45,108.39

Finding the Fourth Proportional to 80,916.11, 111,664.73 and 45,108.39

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Solution

The fourth proportional to 80,916.11, 111,664.73 and 45,108.39 is: 62,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,916.11 : 111,664.73 = 45,108.39 : x
  2. Step 2: Convert to fraction form
    80,916.11/111,664.73 = 45,108.39/x
  3. Step 3: Cross multiply
    80,916.11x = 111,664.73 × 45,108.39
  4. Step 4: Simplify right side
    80,916.11x = 5,037,016,467.86
  5. Step 5: Solve for x
    x = 5,037,016,467.86/80,916.11
  6. Step 6: Final answer
    x = 62,249.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.