Home / 69,131.09-103,691.76-39,455.93

Finding the Fourth Proportional to 69,131.09, 103,691.76 and 39,455.93

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Solution

The fourth proportional to 69,131.09, 103,691.76 and 39,455.93 is: 59,181.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,131.09 : 103,691.76 = 39,455.93 : x
  2. Step 2: Convert to fraction form
    69,131.09/103,691.76 = 39,455.93/x
  3. Step 3: Cross multiply
    69,131.09x = 103,691.76 × 39,455.93
  4. Step 4: Simplify right side
    69,131.09x = 4,091,254,824.14
  5. Step 5: Solve for x
    x = 4,091,254,824.14/69,131.09
  6. Step 6: Final answer
    x = 59,181.11

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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.