Home / 99,451.56-149,187.77-57,379.16

Finding the Fourth Proportional to 99,451.56, 149,187.77 and 57,379.16

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Solution

The fourth proportional to 99,451.56, 149,187.77 and 57,379.16 is: 86,074.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,451.56 : 149,187.77 = 57,379.16 : x
  2. Step 2: Convert to fraction form
    99,451.56/149,187.77 = 57,379.16/x
  3. Step 3: Cross multiply
    99,451.56x = 149,187.77 × 57,379.16
  4. Step 4: Simplify right side
    99,451.56x = 8,560,267,892.04
  5. Step 5: Solve for x
    x = 8,560,267,892.04/99,451.56
  6. Step 6: Final answer
    x = 86,074.75

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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.