Home / 75,116.43-112,678.29-61,944.75

Finding the Fourth Proportional to 75,116.43, 112,678.29 and 61,944.75

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Solution

The fourth proportional to 75,116.43, 112,678.29 and 61,944.75 is: 92,920.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,116.43 : 112,678.29 = 61,944.75 : x
  2. Step 2: Convert to fraction form
    75,116.43/112,678.29 = 61,944.75/x
  3. Step 3: Cross multiply
    75,116.43x = 112,678.29 × 61,944.75
  4. Step 4: Simplify right side
    75,116.43x = 6,979,828,504.48
  5. Step 5: Solve for x
    x = 6,979,828,504.48/75,116.43
  6. Step 6: Final answer
    x = 92,920.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.