Home / 90,495.36-135,822.24-48,408.96

Finding the Fourth Proportional to 90,495.36, 135,822.24 and 48,408.96

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Solution

The fourth proportional to 90,495.36, 135,822.24 and 48,408.96 is: 72,655.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,495.36 : 135,822.24 = 48,408.96 : x
  2. Step 2: Convert to fraction form
    90,495.36/135,822.24 = 48,408.96/x
  3. Step 3: Cross multiply
    90,495.36x = 135,822.24 × 48,408.96
  4. Step 4: Simplify right side
    90,495.36x = 6,575,013,383.27
  5. Step 5: Solve for x
    x = 6,575,013,383.27/90,495.36
  6. Step 6: Final answer
    x = 72,655.81

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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.