Home / 65,749.57-90,712.23-37,435.21

Finding the Fourth Proportional to 65,749.57, 90,712.23 and 37,435.21

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Solution

The fourth proportional to 65,749.57, 90,712.23 and 37,435.21 is: 51,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749.57 : 90,712.23 = 37,435.21 : x
  2. Step 2: Convert to fraction form
    65,749.57/90,712.23 = 37,435.21/x
  3. Step 3: Cross multiply
    65,749.57x = 90,712.23 × 37,435.21
  4. Step 4: Simplify right side
    65,749.57x = 3,395,831,379.62
  5. Step 5: Solve for x
    x = 3,395,831,379.62/65,749.57
  6. Step 6: Final answer
    x = 51,647.96

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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.