Home / 60,209.76-90,332.46-20,770.86

Finding the Fourth Proportional to 60,209.76, 90,332.46 and 20,770.86

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Solution

The fourth proportional to 60,209.76, 90,332.46 and 20,770.86 is: 31,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,209.76 : 90,332.46 = 20,770.86 : x
  2. Step 2: Convert to fraction form
    60,209.76/90,332.46 = 20,770.86/x
  3. Step 3: Cross multiply
    60,209.76x = 90,332.46 × 20,770.86
  4. Step 4: Simplify right side
    60,209.76x = 1,876,282,880.12
  5. Step 5: Solve for x
    x = 1,876,282,880.12/60,209.76
  6. Step 6: Final answer
    x = 31,162.44

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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.