Home / 76,999.77-106,261.43-45,191.61

Finding the Fourth Proportional to 76,999.77, 106,261.43 and 45,191.61

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Solution

The fourth proportional to 76,999.77, 106,261.43 and 45,191.61 is: 62,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,999.77 : 106,261.43 = 45,191.61 : x
  2. Step 2: Convert to fraction form
    76,999.77/106,261.43 = 45,191.61/x
  3. Step 3: Cross multiply
    76,999.77x = 106,261.43 × 45,191.61
  4. Step 4: Simplify right side
    76,999.77x = 4,802,124,876.64
  5. Step 5: Solve for x
    x = 4,802,124,876.64/76,999.77
  6. Step 6: Final answer
    x = 62,365.44

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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.