Home / 89,709.04-123,801.65-49,425.86

Finding the Fourth Proportional to 89,709.04, 123,801.65 and 49,425.86

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Solution

The fourth proportional to 89,709.04, 123,801.65 and 49,425.86 is: 68,209.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,709.04 : 123,801.65 = 49,425.86 : x
  2. Step 2: Convert to fraction form
    89,709.04/123,801.65 = 49,425.86/x
  3. Step 3: Cross multiply
    89,709.04x = 123,801.65 × 49,425.86
  4. Step 4: Simplify right side
    89,709.04x = 6,119,003,268.39
  5. Step 5: Solve for x
    x = 6,119,003,268.39/89,709.04
  6. Step 6: Final answer
    x = 68,209.44

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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.