Home / 75,344.11-103,935.22-57,407.96

Finding the Fourth Proportional to 75,344.11, 103,935.22 and 57,407.96

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Solution

The fourth proportional to 75,344.11, 103,935.22 and 57,407.96 is: 79,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,344.11 : 103,935.22 = 57,407.96 : x
  2. Step 2: Convert to fraction form
    75,344.11/103,935.22 = 57,407.96/x
  3. Step 3: Cross multiply
    75,344.11x = 103,935.22 × 57,407.96
  4. Step 4: Simplify right side
    75,344.11x = 5,966,709,068.67
  5. Step 5: Solve for x
    x = 5,966,709,068.67/75,344.11
  6. Step 6: Final answer
    x = 79,192.78

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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.