Home / 90,823.99-136,236.75-31,659.55

Finding the Fourth Proportional to 90,823.99, 136,236.75 and 31,659.55

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Solution

The fourth proportional to 90,823.99, 136,236.75 and 31,659.55 is: 47,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,823.99 : 136,236.75 = 31,659.55 : x
  2. Step 2: Convert to fraction form
    90,823.99/136,236.75 = 31,659.55/x
  3. Step 3: Cross multiply
    90,823.99x = 136,236.75 × 31,659.55
  4. Step 4: Simplify right side
    90,823.99x = 4,313,194,198.46
  5. Step 5: Solve for x
    x = 4,313,194,198.46/90,823.99
  6. Step 6: Final answer
    x = 47,489.59

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1.5x scale

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.