Home / 83,175.12-124,812.09-30,621.51

Finding the Fourth Proportional to 83,175.12, 124,812.09 and 30,621.51

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Solution

The fourth proportional to 83,175.12, 124,812.09 and 30,621.51 is: 45,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,175.12 : 124,812.09 = 30,621.51 : x
  2. Step 2: Convert to fraction form
    83,175.12/124,812.09 = 30,621.51/x
  3. Step 3: Cross multiply
    83,175.12x = 124,812.09 × 30,621.51
  4. Step 4: Simplify right side
    83,175.12x = 3,821,934,662.06
  5. Step 5: Solve for x
    x = 3,821,934,662.06/83,175.12
  6. Step 6: Final answer
    x = 45,950.46

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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.