Home / 85,133.59-127,720.37-25,969.26

Finding the Fourth Proportional to 85,133.59, 127,720.37 and 25,969.26

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Solution

The fourth proportional to 85,133.59, 127,720.37 and 25,969.26 is: 38,959.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,133.59 : 127,720.37 = 25,969.26 : x
  2. Step 2: Convert to fraction form
    85,133.59/127,720.37 = 25,969.26/x
  3. Step 3: Cross multiply
    85,133.59x = 127,720.37 × 25,969.26
  4. Step 4: Simplify right side
    85,133.59x = 3,316,803,330.40
  5. Step 5: Solve for x
    x = 3,316,803,330.40/85,133.59
  6. Step 6: Final answer
    x = 38,959.99

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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.