Home / 75,091.86-103,456.83-61,641.81

Finding the Fourth Proportional to 75,091.86, 103,456.83 and 61,641.81

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Solution

The fourth proportional to 75,091.86, 103,456.83 and 61,641.81 is: 84,926.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,091.86 : 103,456.83 = 61,641.81 : x
  2. Step 2: Convert to fraction form
    75,091.86/103,456.83 = 61,641.81/x
  3. Step 3: Cross multiply
    75,091.86x = 103,456.83 × 61,641.81
  4. Step 4: Simplify right side
    75,091.86x = 6,377,266,258.06
  5. Step 5: Solve for x
    x = 6,377,266,258.06/75,091.86
  6. Step 6: Final answer
    x = 84,926.20

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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.