Home / 76,784.12-114,983.76-48,619.22

Finding the Fourth Proportional to 76,784.12, 114,983.76 and 48,619.22

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Solution

The fourth proportional to 76,784.12, 114,983.76 and 48,619.22 is: 72,806.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,784.12 : 114,983.76 = 48,619.22 : x
  2. Step 2: Convert to fraction form
    76,784.12/114,983.76 = 48,619.22/x
  3. Step 3: Cross multiply
    76,784.12x = 114,983.76 × 48,619.22
  4. Step 4: Simplify right side
    76,784.12x = 5,590,420,723.87
  5. Step 5: Solve for x
    x = 5,590,420,723.87/76,784.12
  6. Step 6: Final answer
    x = 72,806.99

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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.