Home / 76,638.15-114,840.11-32,240.57

Finding the Fourth Proportional to 76,638.15, 114,840.11 and 32,240.57

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Solution

The fourth proportional to 76,638.15, 114,840.11 and 32,240.57 is: 48,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,638.15 : 114,840.11 = 32,240.57 : x
  2. Step 2: Convert to fraction form
    76,638.15/114,840.11 = 32,240.57/x
  3. Step 3: Cross multiply
    76,638.15x = 114,840.11 × 32,240.57
  4. Step 4: Simplify right side
    76,638.15x = 3,702,510,111.66
  5. Step 5: Solve for x
    x = 3,702,510,111.66/76,638.15
  6. Step 6: Final answer
    x = 48,311.58

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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.