Home / 85,135.04-127,721.29-25,975.27

Finding the Fourth Proportional to 85,135.04, 127,721.29 and 25,975.27

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Solution

The fourth proportional to 85,135.04, 127,721.29 and 25,975.27 is: 38,968.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,135.04 : 127,721.29 = 25,975.27 : x
  2. Step 2: Convert to fraction form
    85,135.04/127,721.29 = 25,975.27/x
  3. Step 3: Cross multiply
    85,135.04x = 127,721.29 × 25,975.27
  4. Step 4: Simplify right side
    85,135.04x = 3,317,594,992.50
  5. Step 5: Solve for x
    x = 3,317,594,992.50/85,135.04
  6. Step 6: Final answer
    x = 38,968.62

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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.