Home / 76,653.18-114,971.00-20,497.66

Finding the Fourth Proportional to 76,653.18, 114,971.00 and 20,497.66

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Solution

The fourth proportional to 76,653.18, 114,971.00 and 20,497.66 is: 30,744.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,653.18 : 114,971.00 = 20,497.66 : x
  2. Step 2: Convert to fraction form
    76,653.18/114,971.00 = 20,497.66/x
  3. Step 3: Cross multiply
    76,653.18x = 114,971.00 × 20,497.66
  4. Step 4: Simplify right side
    76,653.18x = 2,356,636,832.15
  5. Step 5: Solve for x
    x = 2,356,636,832.15/76,653.18
  6. Step 6: Final answer
    x = 30,744.15

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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.