Home / 81,723.33-122,769.53-48,465.21

Finding the Fourth Proportional to 81,723.33, 122,769.53 and 48,465.21

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Solution

The fourth proportional to 81,723.33, 122,769.53 and 48,465.21 is: 72,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,723.33 : 122,769.53 = 48,465.21 : x
  2. Step 2: Convert to fraction form
    81,723.33/122,769.53 = 48,465.21/x
  3. Step 3: Cross multiply
    81,723.33x = 122,769.53 × 48,465.21
  4. Step 4: Simplify right side
    81,723.33x = 5,950,051,053.05
  5. Step 5: Solve for x
    x = 5,950,051,053.05/81,723.33
  6. Step 6: Final answer
    x = 72,807.25

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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.