Home / 90,747.54-136,135.83-31,600.02

Finding the Fourth Proportional to 90,747.54, 136,135.83 and 31,600.02

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Solution

The fourth proportional to 90,747.54, 136,135.83 and 31,600.02 is: 47,405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,747.54 : 136,135.83 = 31,600.02 : x
  2. Step 2: Convert to fraction form
    90,747.54/136,135.83 = 31,600.02/x
  3. Step 3: Cross multiply
    90,747.54x = 136,135.83 × 31,600.02
  4. Step 4: Simplify right side
    90,747.54x = 4,301,894,950.72
  5. Step 5: Solve for x
    x = 4,301,894,950.72/90,747.54
  6. Step 6: Final answer
    x = 47,405.09

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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.