Home / 75,651.40-104,397.06-42,116.68

Finding the Fourth Proportional to 75,651.40, 104,397.06 and 42,116.68

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Solution

The fourth proportional to 75,651.40, 104,397.06 and 42,116.68 is: 58,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,651.40 : 104,397.06 = 42,116.68 : x
  2. Step 2: Convert to fraction form
    75,651.40/104,397.06 = 42,116.68/x
  3. Step 3: Cross multiply
    75,651.40x = 104,397.06 × 42,116.68
  4. Step 4: Simplify right side
    75,651.40x = 4,396,857,568.96
  5. Step 5: Solve for x
    x = 4,396,857,568.96/75,651.40
  6. Step 6: Final answer
    x = 58,119.98

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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.