Home / 68,219.20-94,146.72-39,922.24

Finding the Fourth Proportional to 68,219.20, 94,146.72 and 39,922.24

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Solution

The fourth proportional to 68,219.20, 94,146.72 and 39,922.24 is: 55,095.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,219.20 : 94,146.72 = 39,922.24 : x
  2. Step 2: Convert to fraction form
    68,219.20/94,146.72 = 39,922.24/x
  3. Step 3: Cross multiply
    68,219.20x = 94,146.72 × 39,922.24
  4. Step 4: Simplify right side
    68,219.20x = 3,758,547,951.05
  5. Step 5: Solve for x
    x = 3,758,547,951.05/68,219.20
  6. Step 6: Final answer
    x = 55,095.16

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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.