Home / 60,677.28-90,958.32-21,208.68

Finding the Fourth Proportional to 60,677.28, 90,958.32 and 21,208.68

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Solution

The fourth proportional to 60,677.28, 90,958.32 and 21,208.68 is: 31,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,677.28 : 90,958.32 = 21,208.68 : x
  2. Step 2: Convert to fraction form
    60,677.28/90,958.32 = 21,208.68/x
  3. Step 3: Cross multiply
    60,677.28x = 90,958.32 × 21,208.68
  4. Step 4: Simplify right side
    60,677.28x = 1,929,105,902.22
  5. Step 5: Solve for x
    x = 1,929,105,902.22/60,677.28
  6. Step 6: Final answer
    x = 31,792.89

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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.