Home / 84,701.44-127,128.32-45,292.24

Finding the Fourth Proportional to 84,701.44, 127,128.32 and 45,292.24

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Solution

The fourth proportional to 84,701.44, 127,128.32 and 45,292.24 is: 67,979.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,701.44 : 127,128.32 = 45,292.24 : x
  2. Step 2: Convert to fraction form
    84,701.44/127,128.32 = 45,292.24/x
  3. Step 3: Cross multiply
    84,701.44x = 127,128.32 × 45,292.24
  4. Step 4: Simplify right side
    84,701.44x = 5,757,926,380.24
  5. Step 5: Solve for x
    x = 5,757,926,380.24/84,701.44
  6. Step 6: Final answer
    x = 67,979.08

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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.