Home / 77,688.24-116,515.02-30,304.62

Finding the Fourth Proportional to 77,688.24, 116,515.02 and 30,304.62

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Solution

The fourth proportional to 77,688.24, 116,515.02 and 30,304.62 is: 45,450.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,688.24 : 116,515.02 = 30,304.62 : x
  2. Step 2: Convert to fraction form
    77,688.24/116,515.02 = 30,304.62/x
  3. Step 3: Cross multiply
    77,688.24x = 116,515.02 × 30,304.62
  4. Step 4: Simplify right side
    77,688.24x = 3,530,943,405.39
  5. Step 5: Solve for x
    x = 3,530,943,405.39/77,688.24
  6. Step 6: Final answer
    x = 45,450.17

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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.