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Finding the Fourth Proportional to 68,174.64, 93,993.05 and 55,864.28

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Solution

The fourth proportional to 68,174.64, 93,993.05 and 55,864.28 is: 77,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,174.64 : 93,993.05 = 55,864.28 : x
  2. Step 2: Convert to fraction form
    68,174.64/93,993.05 = 55,864.28/x
  3. Step 3: Cross multiply
    68,174.64x = 93,993.05 × 55,864.28
  4. Step 4: Simplify right side
    68,174.64x = 5,250,854,437.90
  5. Step 5: Solve for x
    x = 5,250,854,437.90/68,174.64
  6. Step 6: Final answer
    x = 77,020.64

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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.