Home / 90,401.61-135,570.97-37,078.45

Finding the Fourth Proportional to 90,401.61, 135,570.97 and 37,078.45

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Solution

The fourth proportional to 90,401.61, 135,570.97 and 37,078.45 is: 55,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,401.61 : 135,570.97 = 37,078.45 : x
  2. Step 2: Convert to fraction form
    90,401.61/135,570.97 = 37,078.45/x
  3. Step 3: Cross multiply
    90,401.61x = 135,570.97 × 37,078.45
  4. Step 4: Simplify right side
    90,401.61x = 5,026,761,339.90
  5. Step 5: Solve for x
    x = 5,026,761,339.90/90,401.61
  6. Step 6: Final answer
    x = 55,604.78

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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.