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Finding the Fourth Proportional to 85,599.83, 128,330.18 and 35,717.10

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Solution

The fourth proportional to 85,599.83, 128,330.18 and 35,717.10 is: 53,546.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,599.83 : 128,330.18 = 35,717.10 : x
  2. Step 2: Convert to fraction form
    85,599.83/128,330.18 = 35,717.10/x
  3. Step 3: Cross multiply
    85,599.83x = 128,330.18 × 35,717.10
  4. Step 4: Simplify right side
    85,599.83x = 4,583,581,872.08
  5. Step 5: Solve for x
    x = 4,583,581,872.08/85,599.83
  6. Step 6: Final answer
    x = 53,546.62

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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.