Home / 85,136.26-127,723.17-25,976.50

Finding the Fourth Proportional to 85,136.26, 127,723.17 and 25,976.50

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Solution

The fourth proportional to 85,136.26, 127,723.17 and 25,976.50 is: 38,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,136.26 : 127,723.17 = 25,976.50 : x
  2. Step 2: Convert to fraction form
    85,136.26/127,723.17 = 25,976.50/x
  3. Step 3: Cross multiply
    85,136.26x = 127,723.17 × 25,976.50
  4. Step 4: Simplify right side
    85,136.26x = 3,317,800,925.51
  5. Step 5: Solve for x
    x = 3,317,800,925.51/85,136.26
  6. Step 6: Final answer
    x = 38,970.48

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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.