Home / 77,305.19-106,685.30-43,311.69

Finding the Fourth Proportional to 77,305.19, 106,685.30 and 43,311.69

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Solution

The fourth proportional to 77,305.19, 106,685.30 and 43,311.69 is: 59,772.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,305.19 : 106,685.30 = 43,311.69 : x
  2. Step 2: Convert to fraction form
    77,305.19/106,685.30 = 43,311.69/x
  3. Step 3: Cross multiply
    77,305.19x = 106,685.30 × 43,311.69
  4. Step 4: Simplify right side
    77,305.19x = 4,620,720,749.44
  5. Step 5: Solve for x
    x = 4,620,720,749.44/77,305.19
  6. Step 6: Final answer
    x = 59,772.46

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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.