Home / 90,558.63-135,833.56-34,394.36

Finding the Fourth Proportional to 90,558.63, 135,833.56 and 34,394.36

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Solution

The fourth proportional to 90,558.63, 135,833.56 and 34,394.36 is: 51,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,558.63 : 135,833.56 = 34,394.36 : x
  2. Step 2: Convert to fraction form
    90,558.63/135,833.56 = 34,394.36/x
  3. Step 3: Cross multiply
    90,558.63x = 135,833.56 × 34,394.36
  4. Step 4: Simplify right side
    90,558.63x = 4,671,908,109.12
  5. Step 5: Solve for x
    x = 4,671,908,109.12/90,558.63
  6. Step 6: Final answer
    x = 51,589.87

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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.