Home / 64,745.13-89,327.43-39,261.72

Finding the Fourth Proportional to 64,745.13, 89,327.43 and 39,261.72

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Solution

The fourth proportional to 64,745.13, 89,327.43 and 39,261.72 is: 54,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,745.13 : 89,327.43 = 39,261.72 : x
  2. Step 2: Convert to fraction form
    64,745.13/89,327.43 = 39,261.72/x
  3. Step 3: Cross multiply
    64,745.13x = 89,327.43 × 39,261.72
  4. Step 4: Simplify right side
    64,745.13x = 3,507,148,544.98
  5. Step 5: Solve for x
    x = 3,507,148,544.98/64,745.13
  6. Step 6: Final answer
    x = 54,168.53

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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.