Home / 90,665.07-135,997.58-28,335.57

Finding the Fourth Proportional to 90,665.07, 135,997.58 and 28,335.57

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Solution

The fourth proportional to 90,665.07, 135,997.58 and 28,335.57 is: 42,503.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,665.07 : 135,997.58 = 28,335.57 : x
  2. Step 2: Convert to fraction form
    90,665.07/135,997.58 = 28,335.57/x
  3. Step 3: Cross multiply
    90,665.07x = 135,997.58 × 28,335.57
  4. Step 4: Simplify right side
    90,665.07x = 3,853,568,947.92
  5. Step 5: Solve for x
    x = 3,853,568,947.92/90,665.07
  6. Step 6: Final answer
    x = 42,503.35

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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.