Home / 76,206.20-105,164.46-42,672.44

Finding the Fourth Proportional to 76,206.20, 105,164.46 and 42,672.44

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Solution

The fourth proportional to 76,206.20, 105,164.46 and 42,672.44 is: 58,887.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,206.20 : 105,164.46 = 42,672.44 : x
  2. Step 2: Convert to fraction form
    76,206.20/105,164.46 = 42,672.44/x
  3. Step 3: Cross multiply
    76,206.20x = 105,164.46 × 42,672.44
  4. Step 4: Simplify right side
    76,206.20x = 4,487,624,109.48
  5. Step 5: Solve for x
    x = 4,487,624,109.48/76,206.20
  6. Step 6: Final answer
    x = 58,887.91

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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.