Home / 85,717.83-128,597.27-35,770.14

Finding the Fourth Proportional to 85,717.83, 128,597.27 and 35,770.14

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Solution

The fourth proportional to 85,717.83, 128,597.27 and 35,770.14 is: 53,663.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,717.83 : 128,597.27 = 35,770.14 : x
  2. Step 2: Convert to fraction form
    85,717.83/128,597.27 = 35,770.14/x
  3. Step 3: Cross multiply
    85,717.83x = 128,597.27 × 35,770.14
  4. Step 4: Simplify right side
    85,717.83x = 4,599,942,351.52
  5. Step 5: Solve for x
    x = 4,599,942,351.52/85,717.83
  6. Step 6: Final answer
    x = 53,663.78

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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.