Home / 65,622.78-98,449.85-21,249.59

Finding the Fourth Proportional to 65,622.78, 98,449.85 and 21,249.59

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Solution

The fourth proportional to 65,622.78, 98,449.85 and 21,249.59 is: 31,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,622.78 : 98,449.85 = 21,249.59 : x
  2. Step 2: Convert to fraction form
    65,622.78/98,449.85 = 21,249.59/x
  3. Step 3: Cross multiply
    65,622.78x = 98,449.85 × 21,249.59
  4. Step 4: Simplify right side
    65,622.78x = 2,092,018,349.56
  5. Step 5: Solve for x
    x = 2,092,018,349.56/65,622.78
  6. Step 6: Final answer
    x = 31,879.45

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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.