Home / 89,939.36-124,226.76-67,379.28

Finding the Fourth Proportional to 89,939.36, 124,226.76 and 67,379.28

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Solution

The fourth proportional to 89,939.36, 124,226.76 and 67,379.28 is: 93,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,939.36 : 124,226.76 = 67,379.28 : x
  2. Step 2: Convert to fraction form
    89,939.36/124,226.76 = 67,379.28/x
  3. Step 3: Cross multiply
    89,939.36x = 124,226.76 × 67,379.28
  4. Step 4: Simplify right side
    89,939.36x = 8,370,309,645.53
  5. Step 5: Solve for x
    x = 8,370,309,645.53/89,939.36
  6. Step 6: Final answer
    x = 93,066.15

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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.