Home / 76,579.46-114,856.23-21,162.50

Finding the Fourth Proportional to 76,579.46, 114,856.23 and 21,162.50

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Solution

The fourth proportional to 76,579.46, 114,856.23 and 21,162.50 is: 31,740.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,579.46 : 114,856.23 = 21,162.50 : x
  2. Step 2: Convert to fraction form
    76,579.46/114,856.23 = 21,162.50/x
  3. Step 3: Cross multiply
    76,579.46x = 114,856.23 × 21,162.50
  4. Step 4: Simplify right side
    76,579.46x = 2,430,644,967.38
  5. Step 5: Solve for x
    x = 2,430,644,967.38/76,579.46
  6. Step 6: Final answer
    x = 31,740.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.