Home / 85,134.59-127,721.87-25,970.26

Finding the Fourth Proportional to 85,134.59, 127,721.87 and 25,970.26

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Solution

The fourth proportional to 85,134.59, 127,721.87 and 25,970.26 is: 38,961.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,134.59 : 127,721.87 = 25,970.26 : x
  2. Step 2: Convert to fraction form
    85,134.59/127,721.87 = 25,970.26/x
  3. Step 3: Cross multiply
    85,134.59x = 127,721.87 × 25,970.26
  4. Step 4: Simplify right side
    85,134.59x = 3,316,970,171.59
  5. Step 5: Solve for x
    x = 3,316,970,171.59/85,134.59
  6. Step 6: Final answer
    x = 38,961.49

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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.