Home / 90,442.37-135,645.08-34,263.11

Finding the Fourth Proportional to 90,442.37, 135,645.08 and 34,263.11

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Solution

The fourth proportional to 90,442.37, 135,645.08 and 34,263.11 is: 51,387.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,442.37 : 135,645.08 = 34,263.11 : x
  2. Step 2: Convert to fraction form
    90,442.37/135,645.08 = 34,263.11/x
  3. Step 3: Cross multiply
    90,442.37x = 135,645.08 × 34,263.11
  4. Step 4: Simplify right side
    90,442.37x = 4,647,621,447.46
  5. Step 5: Solve for x
    x = 4,647,621,447.46/90,442.37
  6. Step 6: Final answer
    x = 51,387.66

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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.