Home / 76,554.47-114,816.66-72,756.90

Finding the Fourth Proportional to 76,554.47, 114,816.66 and 72,756.90

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Solution

The fourth proportional to 76,554.47, 114,816.66 and 72,756.90 is: 109,121.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,554.47 : 114,816.66 = 72,756.90 : x
  2. Step 2: Convert to fraction form
    76,554.47/114,816.66 = 72,756.90/x
  3. Step 3: Cross multiply
    76,554.47x = 114,816.66 × 72,756.90
  4. Step 4: Simplify right side
    76,554.47x = 8,353,704,249.95
  5. Step 5: Solve for x
    x = 8,353,704,249.95/76,554.47
  6. Step 6: Final answer
    x = 109,121.06

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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.