Home / 84,936.78-127,398.66-25,772.76

Finding the Fourth Proportional to 84,936.78, 127,398.66 and 25,772.76

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Solution

The fourth proportional to 84,936.78, 127,398.66 and 25,772.76 is: 38,657.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,936.78 : 127,398.66 = 25,772.76 : x
  2. Step 2: Convert to fraction form
    84,936.78/127,398.66 = 25,772.76/x
  3. Step 3: Cross multiply
    84,936.78x = 127,398.66 × 25,772.76
  4. Step 4: Simplify right side
    84,936.78x = 3,283,415,088.50
  5. Step 5: Solve for x
    x = 3,283,415,088.50/84,936.78
  6. Step 6: Final answer
    x = 38,657.16

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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.