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Finding the Fourth Proportional to 60,212.80, 90,146.40 and 36,884.80

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Solution

The fourth proportional to 60,212.80, 90,146.40 and 36,884.80 is: 55,221.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,212.80 : 90,146.40 = 36,884.80 : x
  2. Step 2: Convert to fraction form
    60,212.80/90,146.40 = 36,884.80/x
  3. Step 3: Cross multiply
    60,212.80x = 90,146.40 × 36,884.80
  4. Step 4: Simplify right side
    60,212.80x = 3,325,031,934.72
  5. Step 5: Solve for x
    x = 3,325,031,934.72/60,212.80
  6. Step 6: Final answer
    x = 55,221.35

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1.5x scale

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.