Home / 90,543.06-135,840.51-43,822.26

Finding the Fourth Proportional to 90,543.06, 135,840.51 and 43,822.26

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Solution

The fourth proportional to 90,543.06, 135,840.51 and 43,822.26 is: 65,745.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,543.06 : 135,840.51 = 43,822.26 : x
  2. Step 2: Convert to fraction form
    90,543.06/135,840.51 = 43,822.26/x
  3. Step 3: Cross multiply
    90,543.06x = 135,840.51 × 43,822.26
  4. Step 4: Simplify right side
    90,543.06x = 5,952,838,147.75
  5. Step 5: Solve for x
    x = 5,952,838,147.75/90,543.06
  6. Step 6: Final answer
    x = 65,745.94

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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.