Home / 76,999.19-106,257.75-43,008.15

Finding the Fourth Proportional to 76,999.19, 106,257.75 and 43,008.15

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Solution

The fourth proportional to 76,999.19, 106,257.75 and 43,008.15 is: 59,350.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,999.19 : 106,257.75 = 43,008.15 : x
  2. Step 2: Convert to fraction form
    76,999.19/106,257.75 = 43,008.15/x
  3. Step 3: Cross multiply
    76,999.19x = 106,257.75 × 43,008.15
  4. Step 4: Simplify right side
    76,999.19x = 4,569,949,810.41
  5. Step 5: Solve for x
    x = 4,569,949,810.41/76,999.19
  6. Step 6: Final answer
    x = 59,350.63

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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.