Home / 85,111.95-127,663.31-25,943.01

Finding the Fourth Proportional to 85,111.95, 127,663.31 and 25,943.01

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Solution

The fourth proportional to 85,111.95, 127,663.31 and 25,943.01 is: 38,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,111.95 : 127,663.31 = 25,943.01 : x
  2. Step 2: Convert to fraction form
    85,111.95/127,663.31 = 25,943.01/x
  3. Step 3: Cross multiply
    85,111.95x = 127,663.31 × 25,943.01
  4. Step 4: Simplify right side
    85,111.95x = 3,311,970,398.25
  5. Step 5: Solve for x
    x = 3,311,970,398.25/85,111.95
  6. Step 6: Final answer
    x = 38,913.11

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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.