Home / 76,289.94-114,287.31-42,908.58

Finding the Fourth Proportional to 76,289.94, 114,287.31 and 42,908.58

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Solution

The fourth proportional to 76,289.94, 114,287.31 and 42,908.58 is: 64,279.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,289.94 : 114,287.31 = 42,908.58 : x
  2. Step 2: Convert to fraction form
    76,289.94/114,287.31 = 42,908.58/x
  3. Step 3: Cross multiply
    76,289.94x = 114,287.31 × 42,908.58
  4. Step 4: Simplify right side
    76,289.94x = 4,903,906,184.12
  5. Step 5: Solve for x
    x = 4,903,906,184.12/76,289.94
  6. Step 6: Final answer
    x = 64,279.85

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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.