Home / 84,853.26-127,328.85-45,432.36

Finding the Fourth Proportional to 84,853.26, 127,328.85 and 45,432.36

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Solution

The fourth proportional to 84,853.26, 127,328.85 and 45,432.36 is: 68,174.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,853.26 : 127,328.85 = 45,432.36 : x
  2. Step 2: Convert to fraction form
    84,853.26/127,328.85 = 45,432.36/x
  3. Step 3: Cross multiply
    84,853.26x = 127,328.85 × 45,432.36
  4. Step 4: Simplify right side
    84,853.26x = 5,784,850,151.59
  5. Step 5: Solve for x
    x = 5,784,850,151.59/84,853.26
  6. Step 6: Final answer
    x = 68,174.75

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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.