Home / 76,965.85-106,237.07-45,147.61

Finding the Fourth Proportional to 76,965.85, 106,237.07 and 45,147.61

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Solution

The fourth proportional to 76,965.85, 106,237.07 and 45,147.61 is: 62,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,965.85 : 106,237.07 = 45,147.61 : x
  2. Step 2: Convert to fraction form
    76,965.85/106,237.07 = 45,147.61/x
  3. Step 3: Cross multiply
    76,965.85x = 106,237.07 × 45,147.61
  4. Step 4: Simplify right side
    76,965.85x = 4,796,349,803.90
  5. Step 5: Solve for x
    x = 4,796,349,803.90/76,965.85
  6. Step 6: Final answer
    x = 62,317.90

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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.