Home / 77,979.94-116,951.92-21,824.01

Finding the Fourth Proportional to 77,979.94, 116,951.92 and 21,824.01

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Solution

The fourth proportional to 77,979.94, 116,951.92 and 21,824.01 is: 32,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,979.94 : 116,951.92 = 21,824.01 : x
  2. Step 2: Convert to fraction form
    77,979.94/116,951.92 = 21,824.01/x
  3. Step 3: Cross multiply
    77,979.94x = 116,951.92 × 21,824.01
  4. Step 4: Simplify right side
    77,979.94x = 2,552,359,871.60
  5. Step 5: Solve for x
    x = 2,552,359,871.60/77,979.94
  6. Step 6: Final answer
    x = 32,730.98

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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.