Home / 76,865.76-106,069.50-60,988.14

Finding the Fourth Proportional to 76,865.76, 106,069.50 and 60,988.14

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Solution

The fourth proportional to 76,865.76, 106,069.50 and 60,988.14 is: 84,159.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,865.76 : 106,069.50 = 60,988.14 : x
  2. Step 2: Convert to fraction form
    76,865.76/106,069.50 = 60,988.14/x
  3. Step 3: Cross multiply
    76,865.76x = 106,069.50 × 60,988.14
  4. Step 4: Simplify right side
    76,865.76x = 6,468,981,515.73
  5. Step 5: Solve for x
    x = 6,468,981,515.73/76,865.76
  6. Step 6: Final answer
    x = 84,159.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.