Home / 90,099.54-135,018.09-43,297.74

Finding the Fourth Proportional to 90,099.54, 135,018.09 and 43,297.74

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Solution

The fourth proportional to 90,099.54, 135,018.09 and 43,297.74 is: 64,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,099.54 : 135,018.09 = 43,297.74 : x
  2. Step 2: Convert to fraction form
    90,099.54/135,018.09 = 43,297.74/x
  3. Step 3: Cross multiply
    90,099.54x = 135,018.09 × 43,297.74
  4. Step 4: Simplify right side
    90,099.54x = 5,845,978,156.12
  5. Step 5: Solve for x
    x = 5,845,978,156.12/90,099.54
  6. Step 6: Final answer
    x = 64,883.55

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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.