Home / 76,555.30-114,716.31-39,113.86

Finding the Fourth Proportional to 76,555.30, 114,716.31 and 39,113.86

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Solution

The fourth proportional to 76,555.30, 114,716.31 and 39,113.86 is: 58,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,555.30 : 114,716.31 = 39,113.86 : x
  2. Step 2: Convert to fraction form
    76,555.30/114,716.31 = 39,113.86/x
  3. Step 3: Cross multiply
    76,555.30x = 114,716.31 × 39,113.86
  4. Step 4: Simplify right side
    76,555.30x = 4,486,997,689.06
  5. Step 5: Solve for x
    x = 4,486,997,689.06/76,555.30
  6. Step 6: Final answer
    x = 58,611.20

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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.