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Finding the Fourth Proportional to 68,191.08, 102,300.54 and 28,748.20

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Solution

The fourth proportional to 68,191.08, 102,300.54 and 28,748.20 is: 43,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,191.08 : 102,300.54 = 28,748.20 : x
  2. Step 2: Convert to fraction form
    68,191.08/102,300.54 = 28,748.20/x
  3. Step 3: Cross multiply
    68,191.08x = 102,300.54 × 28,748.20
  4. Step 4: Simplify right side
    68,191.08x = 2,940,956,384.03
  5. Step 5: Solve for x
    x = 2,940,956,384.03/68,191.08
  6. Step 6: Final answer
    x = 43,128.17

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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.