Home / 91,629.21-137,465.34-28,446.11

Finding the Fourth Proportional to 91,629.21, 137,465.34 and 28,446.11

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Solution

The fourth proportional to 91,629.21, 137,465.34 and 28,446.11 is: 42,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,629.21 : 137,465.34 = 28,446.11 : x
  2. Step 2: Convert to fraction form
    91,629.21/137,465.34 = 28,446.11/x
  3. Step 3: Cross multiply
    91,629.21x = 137,465.34 × 28,446.11
  4. Step 4: Simplify right side
    91,629.21x = 3,910,354,182.83
  5. Step 5: Solve for x
    x = 3,910,354,182.83/91,629.21
  6. Step 6: Final answer
    x = 42,675.85

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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.