Home / 90,825.96-136,239.34-31,661.52

Finding the Fourth Proportional to 90,825.96, 136,239.34 and 31,661.52

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Solution

The fourth proportional to 90,825.96, 136,239.34 and 31,661.52 is: 47,492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825.96 : 136,239.34 = 31,661.52 : x
  2. Step 2: Convert to fraction form
    90,825.96/136,239.34 = 31,661.52/x
  3. Step 3: Cross multiply
    90,825.96x = 136,239.34 × 31,661.52
  4. Step 4: Simplify right side
    90,825.96x = 4,313,544,588.20
  5. Step 5: Solve for x
    x = 4,313,544,588.20/90,825.96
  6. Step 6: Final answer
    x = 47,492.42

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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.