Home / 49,910.04-68,874.84-28,689.12

Finding the Fourth Proportional to 49,910.04, 68,874.84 and 28,689.12

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Solution

The fourth proportional to 49,910.04, 68,874.84 and 28,689.12 is: 39,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,910.04 : 68,874.84 = 28,689.12 : x
  2. Step 2: Convert to fraction form
    49,910.04/68,874.84 = 28,689.12/x
  3. Step 3: Cross multiply
    49,910.04x = 68,874.84 × 28,689.12
  4. Step 4: Simplify right side
    49,910.04x = 1,975,958,549.74
  5. Step 5: Solve for x
    x = 1,975,958,549.74/49,910.04
  6. Step 6: Final answer
    x = 39,590.40

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1.5x scale

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.