Home / 81,328.46-121,996.33-35,733.15

Finding the Fourth Proportional to 81,328.46, 121,996.33 and 35,733.15

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Solution

The fourth proportional to 81,328.46, 121,996.33 and 35,733.15 is: 53,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,328.46 : 121,996.33 = 35,733.15 : x
  2. Step 2: Convert to fraction form
    81,328.46/121,996.33 = 35,733.15/x
  3. Step 3: Cross multiply
    81,328.46x = 121,996.33 × 35,733.15
  4. Step 4: Simplify right side
    81,328.46x = 4,359,313,070.01
  5. Step 5: Solve for x
    x = 4,359,313,070.01/81,328.46
  6. Step 6: Final answer
    x = 53,601.33

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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.