Home / 85,136.36-127,699.78-25,967.38

Finding the Fourth Proportional to 85,136.36, 127,699.78 and 25,967.38

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Solution

The fourth proportional to 85,136.36, 127,699.78 and 25,967.38 is: 38,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,136.36 : 127,699.78 = 25,967.38 : x
  2. Step 2: Convert to fraction form
    85,136.36/127,699.78 = 25,967.38/x
  3. Step 3: Cross multiply
    85,136.36x = 127,699.78 × 25,967.38
  4. Step 4: Simplify right side
    85,136.36x = 3,316,028,713.18
  5. Step 5: Solve for x
    x = 3,316,028,713.18/85,136.36
  6. Step 6: Final answer
    x = 38,949.62

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1.5x scale

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.