Home / 84,832.28-127,247.10-20,791.05

Finding the Fourth Proportional to 84,832.28, 127,247.10 and 20,791.05

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Solution

The fourth proportional to 84,832.28, 127,247.10 and 20,791.05 is: 31,186.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,832.28 : 127,247.10 = 20,791.05 : x
  2. Step 2: Convert to fraction form
    84,832.28/127,247.10 = 20,791.05/x
  3. Step 3: Cross multiply
    84,832.28x = 127,247.10 × 20,791.05
  4. Step 4: Simplify right side
    84,832.28x = 2,645,600,818.46
  5. Step 5: Solve for x
    x = 2,645,600,818.46/84,832.28
  6. Step 6: Final answer
    x = 31,186.25

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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.