Home / 76,967.28-106,213.81-42,976.33

Finding the Fourth Proportional to 76,967.28, 106,213.81 and 42,976.33

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Solution

The fourth proportional to 76,967.28, 106,213.81 and 42,976.33 is: 59,306.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,967.28 : 106,213.81 = 42,976.33 : x
  2. Step 2: Convert to fraction form
    76,967.28/106,213.81 = 42,976.33/x
  3. Step 3: Cross multiply
    76,967.28x = 106,213.81 × 42,976.33
  4. Step 4: Simplify right side
    76,967.28x = 4,564,679,749.12
  5. Step 5: Solve for x
    x = 4,564,679,749.12/76,967.28
  6. Step 6: Final answer
    x = 59,306.76

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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.