Home / 43,369.12-65,058-11,779.72

Finding the Fourth Proportional to 43,369.12, 65,058 and 11,779.72

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Solution

The fourth proportional to 43,369.12, 65,058 and 11,779.72 is: 17,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,369.12 : 65,058 = 11,779.72 : x
  2. Step 2: Convert to fraction form
    43,369.12/65,058 = 11,779.72/x
  3. Step 3: Cross multiply
    43,369.12x = 65,058 × 11,779.72
  4. Step 4: Simplify right side
    43,369.12x = 766,365,023.76
  5. Step 5: Solve for x
    x = 766,365,023.76/43,369.12
  6. Step 6: Final answer
    x = 17,670.75

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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.