Home / 68,380.07-102,570.12-18,460.11

Finding the Fourth Proportional to 68,380.07, 102,570.12 and 18,460.11

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Solution

The fourth proportional to 68,380.07, 102,570.12 and 18,460.11 is: 27,690.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,380.07 : 102,570.12 = 18,460.11 : x
  2. Step 2: Convert to fraction form
    68,380.07/102,570.12 = 18,460.11/x
  3. Step 3: Cross multiply
    68,380.07x = 102,570.12 × 18,460.11
  4. Step 4: Simplify right side
    68,380.07x = 1,893,456,082.55
  5. Step 5: Solve for x
    x = 1,893,456,082.55/68,380.07
  6. Step 6: Final answer
    x = 27,690.18

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1.5x scale

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.