Home / 85,049.48-127,580.70-25,890.20

Finding the Fourth Proportional to 85,049.48, 127,580.70 and 25,890.20

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Solution

The fourth proportional to 85,049.48, 127,580.70 and 25,890.20 is: 38,837.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,049.48 : 127,580.70 = 25,890.20 : x
  2. Step 2: Convert to fraction form
    85,049.48/127,580.70 = 25,890.20/x
  3. Step 3: Cross multiply
    85,049.48x = 127,580.70 × 25,890.20
  4. Step 4: Simplify right side
    85,049.48x = 3,303,089,839.14
  5. Step 5: Solve for x
    x = 3,303,089,839.14/85,049.48
  6. Step 6: Final answer
    x = 38,837.27

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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.