Home / 90,434.70-135,575.51-34,243.84

Finding the Fourth Proportional to 90,434.70, 135,575.51 and 34,243.84

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Solution

The fourth proportional to 90,434.70, 135,575.51 and 34,243.84 is: 51,336.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,434.70 : 135,575.51 = 34,243.84 : x
  2. Step 2: Convert to fraction form
    90,434.70/135,575.51 = 34,243.84/x
  3. Step 3: Cross multiply
    90,434.70x = 135,575.51 × 34,243.84
  4. Step 4: Simplify right side
    90,434.70x = 4,642,625,308.00
  5. Step 5: Solve for x
    x = 4,642,625,308.00/90,434.70
  6. Step 6: Final answer
    x = 51,336.77

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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.