Home / 81,416.76-122,142.66-25,255.74

Finding the Fourth Proportional to 81,416.76, 122,142.66 and 25,255.74

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Solution

The fourth proportional to 81,416.76, 122,142.66 and 25,255.74 is: 37,889.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,416.76 : 122,142.66 = 25,255.74 : x
  2. Step 2: Convert to fraction form
    81,416.76/122,142.66 = 25,255.74/x
  3. Step 3: Cross multiply
    81,416.76x = 122,142.66 × 25,255.74
  4. Step 4: Simplify right side
    81,416.76x = 3,084,803,263.87
  5. Step 5: Solve for x
    x = 3,084,803,263.87/81,416.76
  6. Step 6: Final answer
    x = 37,889.04

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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.