Home / 81,975.24-123,022.80-52,465.32

Finding the Fourth Proportional to 81,975.24, 123,022.80 and 52,465.32

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Solution

The fourth proportional to 81,975.24, 123,022.80 and 52,465.32 is: 78,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,975.24 : 123,022.80 = 52,465.32 : x
  2. Step 2: Convert to fraction form
    81,975.24/123,022.80 = 52,465.32/x
  3. Step 3: Cross multiply
    81,975.24x = 123,022.80 × 52,465.32
  4. Step 4: Simplify right side
    81,975.24x = 6,454,430,569.30
  5. Step 5: Solve for x
    x = 6,454,430,569.30/81,975.24
  6. Step 6: Final answer
    x = 78,736.34

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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.