Home / 52,359.80-78,505.14-21,163.64

Finding the Fourth Proportional to 52,359.80, 78,505.14 and 21,163.64

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Solution

The fourth proportional to 52,359.80, 78,505.14 and 21,163.64 is: 31,731.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,359.80 : 78,505.14 = 21,163.64 : x
  2. Step 2: Convert to fraction form
    52,359.80/78,505.14 = 21,163.64/x
  3. Step 3: Cross multiply
    52,359.80x = 78,505.14 × 21,163.64
  4. Step 4: Simplify right side
    52,359.80x = 1,661,454,521.11
  5. Step 5: Solve for x
    x = 1,661,454,521.11/52,359.80
  6. Step 6: Final answer
    x = 31,731.49

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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.