Home / 89,745.12-134,357.04-52,190.68

Finding the Fourth Proportional to 89,745.12, 134,357.04 and 52,190.68

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Solution

The fourth proportional to 89,745.12, 134,357.04 and 52,190.68 is: 78,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,745.12 : 134,357.04 = 52,190.68 : x
  2. Step 2: Convert to fraction form
    89,745.12/134,357.04 = 52,190.68/x
  3. Step 3: Cross multiply
    89,745.12x = 134,357.04 × 52,190.68
  4. Step 4: Simplify right side
    89,745.12x = 7,012,185,280.39
  5. Step 5: Solve for x
    x = 7,012,185,280.39/89,745.12
  6. Step 6: Final answer
    x = 78,134.45

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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.