Home / 76,080.66-104,986.72-45,875.76

Finding the Fourth Proportional to 76,080.66, 104,986.72 and 45,875.76

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Solution

The fourth proportional to 76,080.66, 104,986.72 and 45,875.76 is: 63,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,080.66 : 104,986.72 = 45,875.76 : x
  2. Step 2: Convert to fraction form
    76,080.66/104,986.72 = 45,875.76/x
  3. Step 3: Cross multiply
    76,080.66x = 104,986.72 × 45,875.76
  4. Step 4: Simplify right side
    76,080.66x = 4,816,345,569.91
  5. Step 5: Solve for x
    x = 4,816,345,569.91/76,080.66
  6. Step 6: Final answer
    x = 63,305.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.