Home / 90,399.19-135,607.78-33,488.32

Finding the Fourth Proportional to 90,399.19, 135,607.78 and 33,488.32

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Solution

The fourth proportional to 90,399.19, 135,607.78 and 33,488.32 is: 50,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,399.19 : 135,607.78 = 33,488.32 : x
  2. Step 2: Convert to fraction form
    90,399.19/135,607.78 = 33,488.32/x
  3. Step 3: Cross multiply
    90,399.19x = 135,607.78 × 33,488.32
  4. Step 4: Simplify right side
    90,399.19x = 4,541,277,307.42
  5. Step 5: Solve for x
    x = 4,541,277,307.42/90,399.19
  6. Step 6: Final answer
    x = 50,235.82

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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.