Home / 75,787.04-113,713.34-40,685.69

Finding the Fourth Proportional to 75,787.04, 113,713.34 and 40,685.69

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Solution

The fourth proportional to 75,787.04, 113,713.34 and 40,685.69 is: 61,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,787.04 : 113,713.34 = 40,685.69 : x
  2. Step 2: Convert to fraction form
    75,787.04/113,713.34 = 40,685.69/x
  3. Step 3: Cross multiply
    75,787.04x = 113,713.34 × 40,685.69
  4. Step 4: Simplify right side
    75,787.04x = 4,626,505,780.96
  5. Step 5: Solve for x
    x = 4,626,505,780.96/75,787.04
  6. Step 6: Final answer
    x = 61,046.13

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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.