Home / 85,505.52-128,284.20-41,119.68

Finding the Fourth Proportional to 85,505.52, 128,284.20 and 41,119.68

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Solution

The fourth proportional to 85,505.52, 128,284.20 and 41,119.68 is: 61,691.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,505.52 : 128,284.20 = 41,119.68 : x
  2. Step 2: Convert to fraction form
    85,505.52/128,284.20 = 41,119.68/x
  3. Step 3: Cross multiply
    85,505.52x = 128,284.20 × 41,119.68
  4. Step 4: Simplify right side
    85,505.52x = 5,275,005,253.06
  5. Step 5: Solve for x
    x = 5,275,005,253.06/85,505.52
  6. Step 6: Final answer
    x = 61,691.98

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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.