Home / 66,617.68-99,857.08-27,158.48

Finding the Fourth Proportional to 66,617.68, 99,857.08 and 27,158.48

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Solution

The fourth proportional to 66,617.68, 99,857.08 and 27,158.48 is: 40,709.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,617.68 : 99,857.08 = 27,158.48 : x
  2. Step 2: Convert to fraction form
    66,617.68/99,857.08 = 27,158.48/x
  3. Step 3: Cross multiply
    66,617.68x = 99,857.08 × 27,158.48
  4. Step 4: Simplify right side
    66,617.68x = 2,711,966,510.04
  5. Step 5: Solve for x
    x = 2,711,966,510.04/66,617.68
  6. Step 6: Final answer
    x = 40,709.41

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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.