Home / 77,764.54-116,787.33-71,513.02

Finding the Fourth Proportional to 77,764.54, 116,787.33 and 71,513.02

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Solution

The fourth proportional to 77,764.54, 116,787.33 and 71,513.02 is: 107,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.54 : 116,787.33 = 71,513.02 : x
  2. Step 2: Convert to fraction form
    77,764.54/116,787.33 = 71,513.02/x
  3. Step 3: Cross multiply
    77,764.54x = 116,787.33 × 71,513.02
  4. Step 4: Simplify right side
    77,764.54x = 8,351,814,666.04
  5. Step 5: Solve for x
    x = 8,351,814,666.04/77,764.54
  6. Step 6: Final answer
    x = 107,398.75

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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.