Home / 75,111.90-103,660.32-43,291.05

Finding the Fourth Proportional to 75,111.90, 103,660.32 and 43,291.05

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Solution

The fourth proportional to 75,111.90, 103,660.32 and 43,291.05 is: 59,745.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,111.90 : 103,660.32 = 43,291.05 : x
  2. Step 2: Convert to fraction form
    75,111.90/103,660.32 = 43,291.05/x
  3. Step 3: Cross multiply
    75,111.90x = 103,660.32 × 43,291.05
  4. Step 4: Simplify right side
    75,111.90x = 4,487,564,096.14
  5. Step 5: Solve for x
    x = 4,487,564,096.14/75,111.90
  6. Step 6: Final answer
    x = 59,745.05

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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.