Home / 90,344.46-135,514.73-31,178.14

Finding the Fourth Proportional to 90,344.46, 135,514.73 and 31,178.14

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Solution

The fourth proportional to 90,344.46, 135,514.73 and 31,178.14 is: 46,766.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,344.46 : 135,514.73 = 31,178.14 : x
  2. Step 2: Convert to fraction form
    90,344.46/135,514.73 = 31,178.14/x
  3. Step 3: Cross multiply
    90,344.46x = 135,514.73 × 31,178.14
  4. Step 4: Simplify right side
    90,344.46x = 4,225,097,224.00
  5. Step 5: Solve for x
    x = 4,225,097,224.00/90,344.46
  6. Step 6: Final answer
    x = 46,766.53

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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.