Home / 90,190.44-124,512.86-54,389.52

Finding the Fourth Proportional to 90,190.44, 124,512.86 and 54,389.52

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Solution

The fourth proportional to 90,190.44, 124,512.86 and 54,389.52 is: 75,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,190.44 : 124,512.86 = 54,389.52 : x
  2. Step 2: Convert to fraction form
    90,190.44/124,512.86 = 54,389.52/x
  3. Step 3: Cross multiply
    90,190.44x = 124,512.86 × 54,389.52
  4. Step 4: Simplify right side
    90,190.44x = 6,772,194,689.23
  5. Step 5: Solve for x
    x = 6,772,194,689.23/90,190.44
  6. Step 6: Final answer
    x = 75,087.72

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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.