Home / 89,329.69-123,332.66-55,374.29

Finding the Fourth Proportional to 89,329.69, 123,332.66 and 55,374.29

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Solution

The fourth proportional to 89,329.69, 123,332.66 and 55,374.29 is: 76,452.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,329.69 : 123,332.66 = 55,374.29 : x
  2. Step 2: Convert to fraction form
    89,329.69/123,332.66 = 55,374.29/x
  3. Step 3: Cross multiply
    89,329.69x = 123,332.66 × 55,374.29
  4. Step 4: Simplify right side
    89,329.69x = 6,829,458,481.31
  5. Step 5: Solve for x
    x = 6,829,458,481.31/89,329.69
  6. Step 6: Final answer
    x = 76,452.28

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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.