Home / 84,700.38-127,049.21-20,659.25

Finding the Fourth Proportional to 84,700.38, 127,049.21 and 20,659.25

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Solution

The fourth proportional to 84,700.38, 127,049.21 and 20,659.25 is: 30,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,700.38 : 127,049.21 = 20,659.25 : x
  2. Step 2: Convert to fraction form
    84,700.38/127,049.21 = 20,659.25/x
  3. Step 3: Cross multiply
    84,700.38x = 127,049.21 × 20,659.25
  4. Step 4: Simplify right side
    84,700.38x = 2,624,741,683.49
  5. Step 5: Solve for x
    x = 2,624,741,683.49/84,700.38
  6. Step 6: Final answer
    x = 30,988.55

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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.