Home / 74,805.68-103,235.78-42,976.62

Finding the Fourth Proportional to 74,805.68, 103,235.78 and 42,976.62

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Solution

The fourth proportional to 74,805.68, 103,235.78 and 42,976.62 is: 59,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,805.68 : 103,235.78 = 42,976.62 : x
  2. Step 2: Convert to fraction form
    74,805.68/103,235.78 = 42,976.62/x
  3. Step 3: Cross multiply
    74,805.68x = 103,235.78 × 42,976.62
  4. Step 4: Simplify right side
    74,805.68x = 4,436,724,672.58
  5. Step 5: Solve for x
    x = 4,436,724,672.58/74,805.68
  6. Step 6: Final answer
    x = 59,310.00

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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.