Home / 127,388.49-191,061.40-38,620.77

Finding the Fourth Proportional to 127,388.49, 191,061.40 and 38,620.77

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Solution

The fourth proportional to 127,388.49, 191,061.40 and 38,620.77 is: 57,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,388.49 : 191,061.40 = 38,620.77 : x
  2. Step 2: Convert to fraction form
    127,388.49/191,061.40 = 38,620.77/x
  3. Step 3: Cross multiply
    127,388.49x = 191,061.40 × 38,620.77
  4. Step 4: Simplify right side
    127,388.49x = 7,378,938,385.28
  5. Step 5: Solve for x
    x = 7,378,938,385.28/127,388.49
  6. Step 6: Final answer
    x = 57,924.69

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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.