Home / 90,824.95-136,237.83-31,660.53

Finding the Fourth Proportional to 90,824.95, 136,237.83 and 31,660.53

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Solution

The fourth proportional to 90,824.95, 136,237.83 and 31,660.53 is: 47,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,824.95 : 136,237.83 = 31,660.53 : x
  2. Step 2: Convert to fraction form
    90,824.95/136,237.83 = 31,660.53/x
  3. Step 3: Cross multiply
    90,824.95x = 136,237.83 × 31,660.53
  4. Step 4: Simplify right side
    90,824.95x = 4,313,361,903.85
  5. Step 5: Solve for x
    x = 4,313,361,903.85/90,824.95
  6. Step 6: Final answer
    x = 47,490.94

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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.