Home / 90,749.06-125,215.26-53,016.02

Finding the Fourth Proportional to 90,749.06, 125,215.26 and 53,016.02

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Solution

The fourth proportional to 90,749.06, 125,215.26 and 53,016.02 is: 73,151.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,749.06 : 125,215.26 = 53,016.02 : x
  2. Step 2: Convert to fraction form
    90,749.06/125,215.26 = 53,016.02/x
  3. Step 3: Cross multiply
    90,749.06x = 125,215.26 × 53,016.02
  4. Step 4: Simplify right side
    90,749.06x = 6,638,414,728.47
  5. Step 5: Solve for x
    x = 6,638,414,728.47/90,749.06
  6. Step 6: Final answer
    x = 73,151.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.