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Finding the Fourth Proportional to 84,703.44, 127,131.32 and 45,294.24

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Solution

The fourth proportional to 84,703.44, 127,131.32 and 45,294.24 is: 67,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,703.44 : 127,131.32 = 45,294.24 : x
  2. Step 2: Convert to fraction form
    84,703.44/127,131.32 = 45,294.24/x
  3. Step 3: Cross multiply
    84,703.44x = 127,131.32 × 45,294.24
  4. Step 4: Simplify right side
    84,703.44x = 5,758,316,519.60
  5. Step 5: Solve for x
    x = 5,758,316,519.60/84,703.44
  6. Step 6: Final answer
    x = 67,982.09

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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.