Home / 127,619.48-191,456.57-38,880.14

Finding the Fourth Proportional to 127,619.48, 191,456.57 and 38,880.14

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Solution

The fourth proportional to 127,619.48, 191,456.57 and 38,880.14 is: 58,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,619.48 : 191,456.57 = 38,880.14 : x
  2. Step 2: Convert to fraction form
    127,619.48/191,456.57 = 38,880.14/x
  3. Step 3: Cross multiply
    127,619.48x = 191,456.57 × 38,880.14
  4. Step 4: Simplify right side
    127,619.48x = 7,443,857,385.44
  5. Step 5: Solve for x
    x = 7,443,857,385.44/127,619.48
  6. Step 6: Final answer
    x = 58,328.53

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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.