Home / 75,975.98-113,954.04-19,820.30

Finding the Fourth Proportional to 75,975.98, 113,954.04 and 19,820.30

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Solution

The fourth proportional to 75,975.98, 113,954.04 and 19,820.30 is: 29,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,975.98 : 113,954.04 = 19,820.30 : x
  2. Step 2: Convert to fraction form
    75,975.98/113,954.04 = 19,820.30/x
  3. Step 3: Cross multiply
    75,975.98x = 113,954.04 × 19,820.30
  4. Step 4: Simplify right side
    75,975.98x = 2,258,602,689.24
  5. Step 5: Solve for x
    x = 2,258,602,689.24/75,975.98
  6. Step 6: Final answer
    x = 29,727.85

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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.