Home / 61,745.16-85,203.26-34,890

Finding the Fourth Proportional to 61,745.16, 85,203.26 and 34,890

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Solution

The fourth proportional to 61,745.16, 85,203.26 and 34,890 is: 48,145.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.16 : 85,203.26 = 34,890 : x
  2. Step 2: Convert to fraction form
    61,745.16/85,203.26 = 34,890/x
  3. Step 3: Cross multiply
    61,745.16x = 85,203.26 × 34,890
  4. Step 4: Simplify right side
    61,745.16x = 2,972,741,741.40
  5. Step 5: Solve for x
    x = 2,972,741,741.40/61,745.16
  6. Step 6: Final answer
    x = 48,145.34

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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.