Home / 90,732.36-136,113.09-31,584.93

Finding the Fourth Proportional to 90,732.36, 136,113.09 and 31,584.93

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Solution

The fourth proportional to 90,732.36, 136,113.09 and 31,584.93 is: 47,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,732.36 : 136,113.09 = 31,584.93 : x
  2. Step 2: Convert to fraction form
    90,732.36/136,113.09 = 31,584.93/x
  3. Step 3: Cross multiply
    90,732.36x = 136,113.09 × 31,584.93
  4. Step 4: Simplify right side
    90,732.36x = 4,299,122,419.73
  5. Step 5: Solve for x
    x = 4,299,122,419.73/90,732.36
  6. Step 6: Final answer
    x = 47,382.46

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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.