Home / 65,749.45-90,712.07-37,435.09

Finding the Fourth Proportional to 65,749.45, 90,712.07 and 37,435.09

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Solution

The fourth proportional to 65,749.45, 90,712.07 and 37,435.09 is: 51,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749.45 : 90,712.07 = 37,435.09 : x
  2. Step 2: Convert to fraction form
    65,749.45/90,712.07 = 37,435.09/x
  3. Step 3: Cross multiply
    65,749.45x = 90,712.07 × 37,435.09
  4. Step 4: Simplify right side
    65,749.45x = 3,395,814,050.98
  5. Step 5: Solve for x
    x = 3,395,814,050.98/65,749.45
  6. Step 6: Final answer
    x = 51,647.80

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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.