Home / 78,032.73-107,577.96-49,338.05

Finding the Fourth Proportional to 78,032.73, 107,577.96 and 49,338.05

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Solution

The fourth proportional to 78,032.73, 107,577.96 and 49,338.05 is: 68,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,032.73 : 107,577.96 = 49,338.05 : x
  2. Step 2: Convert to fraction form
    78,032.73/107,577.96 = 49,338.05/x
  3. Step 3: Cross multiply
    78,032.73x = 107,577.96 × 49,338.05
  4. Step 4: Simplify right side
    78,032.73x = 5,307,686,046.47
  5. Step 5: Solve for x
    x = 5,307,686,046.47/78,032.73
  6. Step 6: Final answer
    x = 68,018.71

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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.