Home / 66,217.66-99,324.29-28,777.77

Finding the Fourth Proportional to 66,217.66, 99,324.29 and 28,777.77

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Solution

The fourth proportional to 66,217.66, 99,324.29 and 28,777.77 is: 43,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,217.66 : 99,324.29 = 28,777.77 : x
  2. Step 2: Convert to fraction form
    66,217.66/99,324.29 = 28,777.77/x
  3. Step 3: Cross multiply
    66,217.66x = 99,324.29 × 28,777.77
  4. Step 4: Simplify right side
    66,217.66x = 2,858,331,644.98
  5. Step 5: Solve for x
    x = 2,858,331,644.98/66,217.66
  6. Step 6: Final answer
    x = 43,165.70

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1.5x scale

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.