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Finding the Fourth Proportional to 60,198.76, 90,304.08 and 20,750.68

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Solution

The fourth proportional to 60,198.76, 90,304.08 and 20,750.68 is: 31,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,198.76 : 90,304.08 = 20,750.68 : x
  2. Step 2: Convert to fraction form
    60,198.76/90,304.08 = 20,750.68/x
  3. Step 3: Cross multiply
    60,198.76x = 90,304.08 × 20,750.68
  4. Step 4: Simplify right side
    60,198.76x = 1,873,871,066.77
  5. Step 5: Solve for x
    x = 1,873,871,066.77/60,198.76
  6. Step 6: Final answer
    x = 31,128.07

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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.