Home / 77,877.94-116,815.23-21,716.55

Finding the Fourth Proportional to 77,877.94, 116,815.23 and 21,716.55

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Solution

The fourth proportional to 77,877.94, 116,815.23 and 21,716.55 is: 32,574.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,877.94 : 116,815.23 = 21,716.55 : x
  2. Step 2: Convert to fraction form
    77,877.94/116,815.23 = 21,716.55/x
  3. Step 3: Cross multiply
    77,877.94x = 116,815.23 × 21,716.55
  4. Step 4: Simplify right side
    77,877.94x = 2,536,823,728.77
  5. Step 5: Solve for x
    x = 2,536,823,728.77/77,877.94
  6. Step 6: Final answer
    x = 32,574.36

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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.