Home / 90,279.05-135,367.92-61,848.11

Finding the Fourth Proportional to 90,279.05, 135,367.92 and 61,848.11

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Solution

The fourth proportional to 90,279.05, 135,367.92 and 61,848.11 is: 92,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,279.05 : 135,367.92 = 61,848.11 : x
  2. Step 2: Convert to fraction form
    90,279.05/135,367.92 = 61,848.11/x
  3. Step 3: Cross multiply
    90,279.05x = 135,367.92 × 61,848.11
  4. Step 4: Simplify right side
    90,279.05x = 8,372,250,345.05
  5. Step 5: Solve for x
    x = 8,372,250,345.05/90,279.05
  6. Step 6: Final answer
    x = 92,737.47

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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.