Home / 89,636.40-123,697.20-49,349.31

Finding the Fourth Proportional to 89,636.40, 123,697.20 and 49,349.31

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Solution

The fourth proportional to 89,636.40, 123,697.20 and 49,349.31 is: 68,101.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,636.40 : 123,697.20 = 49,349.31 : x
  2. Step 2: Convert to fraction form
    89,636.40/123,697.20 = 49,349.31/x
  3. Step 3: Cross multiply
    89,636.40x = 123,697.20 × 49,349.31
  4. Step 4: Simplify right side
    89,636.40x = 6,104,371,468.93
  5. Step 5: Solve for x
    x = 6,104,371,468.93/89,636.40
  6. Step 6: Final answer
    x = 68,101.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.