Home / 77,835.73-116,756.68-21,680.75

Finding the Fourth Proportional to 77,835.73, 116,756.68 and 21,680.75

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Solution

The fourth proportional to 77,835.73, 116,756.68 and 21,680.75 is: 32,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,835.73 : 116,756.68 = 21,680.75 : x
  2. Step 2: Convert to fraction form
    77,835.73/116,756.68 = 21,680.75/x
  3. Step 3: Cross multiply
    77,835.73x = 116,756.68 × 21,680.75
  4. Step 4: Simplify right side
    77,835.73x = 2,531,372,281.51
  5. Step 5: Solve for x
    x = 2,531,372,281.51/77,835.73
  6. Step 6: Final answer
    x = 32,521.98

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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.