Home / 90,578.92-135,824.70-37,974.28

Finding the Fourth Proportional to 90,578.92, 135,824.70 and 37,974.28

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Solution

The fourth proportional to 90,578.92, 135,824.70 and 37,974.28 is: 56,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,578.92 : 135,824.70 = 37,974.28 : x
  2. Step 2: Convert to fraction form
    90,578.92/135,824.70 = 37,974.28/x
  3. Step 3: Cross multiply
    90,578.92x = 135,824.70 × 37,974.28
  4. Step 4: Simplify right side
    90,578.92x = 5,157,845,188.72
  5. Step 5: Solve for x
    x = 5,157,845,188.72/90,578.92
  6. Step 6: Final answer
    x = 56,943.11

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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.