Home / 66,199.48-91,354.64-49,279.39

Finding the Fourth Proportional to 66,199.48, 91,354.64 and 49,279.39

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Solution

The fourth proportional to 66,199.48, 91,354.64 and 49,279.39 is: 68,005.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,199.48 : 91,354.64 = 49,279.39 : x
  2. Step 2: Convert to fraction form
    66,199.48/91,354.64 = 49,279.39/x
  3. Step 3: Cross multiply
    66,199.48x = 91,354.64 × 49,279.39
  4. Step 4: Simplify right side
    66,199.48x = 4,501,900,458.09
  5. Step 5: Solve for x
    x = 4,501,900,458.09/66,199.48
  6. Step 6: Final answer
    x = 68,005.08

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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.