Home / 90,386.54-135,552.38-27,189.86

Finding the Fourth Proportional to 90,386.54, 135,552.38 and 27,189.86

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Solution

The fourth proportional to 90,386.54, 135,552.38 and 27,189.86 is: 40,776.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,386.54 : 135,552.38 = 27,189.86 : x
  2. Step 2: Convert to fraction form
    90,386.54/135,552.38 = 27,189.86/x
  3. Step 3: Cross multiply
    90,386.54x = 135,552.38 × 27,189.86
  4. Step 4: Simplify right side
    90,386.54x = 3,685,650,234.87
  5. Step 5: Solve for x
    x = 3,685,650,234.87/90,386.54
  6. Step 6: Final answer
    x = 40,776.54

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1.5x scale

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.