Home / 85,399.05-128,135.03-41,002.95

Finding the Fourth Proportional to 85,399.05, 128,135.03 and 41,002.95

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Solution

The fourth proportional to 85,399.05, 128,135.03 and 41,002.95 is: 61,521.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,399.05 : 128,135.03 = 41,002.95 : x
  2. Step 2: Convert to fraction form
    85,399.05/128,135.03 = 41,002.95/x
  3. Step 3: Cross multiply
    85,399.05x = 128,135.03 × 41,002.95
  4. Step 4: Simplify right side
    85,399.05x = 5,253,914,023.32
  5. Step 5: Solve for x
    x = 5,253,914,023.32/85,399.05
  6. Step 6: Final answer
    x = 61,521.93

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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.