Home / 83,120.08-124,734.80-30,530.04

Finding the Fourth Proportional to 83,120.08, 124,734.80 and 30,530.04

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Solution

The fourth proportional to 83,120.08, 124,734.80 and 30,530.04 is: 45,815.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.08 : 124,734.80 = 30,530.04 : x
  2. Step 2: Convert to fraction form
    83,120.08/124,734.80 = 30,530.04/x
  3. Step 3: Cross multiply
    83,120.08x = 124,734.80 × 30,530.04
  4. Step 4: Simplify right side
    83,120.08x = 3,808,158,433.39
  5. Step 5: Solve for x
    x = 3,808,158,433.39/83,120.08
  6. Step 6: Final answer
    x = 45,815.14

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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.