Home / 99,777.12-149,672.16-29,650.56

Finding the Fourth Proportional to 99,777.12, 149,672.16 and 29,650.56

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Solution

The fourth proportional to 99,777.12, 149,672.16 and 29,650.56 is: 44,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,777.12 : 149,672.16 = 29,650.56 : x
  2. Step 2: Convert to fraction form
    99,777.12/149,672.16 = 29,650.56/x
  3. Step 3: Cross multiply
    99,777.12x = 149,672.16 × 29,650.56
  4. Step 4: Simplify right side
    99,777.12x = 4,437,863,360.41
  5. Step 5: Solve for x
    x = 4,437,863,360.41/99,777.12
  6. Step 6: Final answer
    x = 44,477.77

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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.