Home / 78,310.49-117,472.83-22,151.17

Finding the Fourth Proportional to 78,310.49, 117,472.83 and 22,151.17

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Solution

The fourth proportional to 78,310.49, 117,472.83 and 22,151.17 is: 33,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,310.49 : 117,472.83 = 22,151.17 : x
  2. Step 2: Convert to fraction form
    78,310.49/117,472.83 = 22,151.17/x
  3. Step 3: Cross multiply
    78,310.49x = 117,472.83 × 22,151.17
  4. Step 4: Simplify right side
    78,310.49x = 2,602,159,929.59
  5. Step 5: Solve for x
    x = 2,602,159,929.59/78,310.49
  6. Step 6: Final answer
    x = 33,228.75

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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.