Home / 76,108.19-105,040.43-43,836.53

Finding the Fourth Proportional to 76,108.19, 105,040.43 and 43,836.53

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Solution

The fourth proportional to 76,108.19, 105,040.43 and 43,836.53 is: 60,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,108.19 : 105,040.43 = 43,836.53 : x
  2. Step 2: Convert to fraction form
    76,108.19/105,040.43 = 43,836.53/x
  3. Step 3: Cross multiply
    76,108.19x = 105,040.43 × 43,836.53
  4. Step 4: Simplify right side
    76,108.19x = 4,604,607,216.52
  5. Step 5: Solve for x
    x = 4,604,607,216.52/76,108.19
  6. Step 6: Final answer
    x = 60,500.81

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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.