Home / 43,129.30-64,693.37-11,108.19

Finding the Fourth Proportional to 43,129.30, 64,693.37 and 11,108.19

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Solution

The fourth proportional to 43,129.30, 64,693.37 and 11,108.19 is: 16,662.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,129.30 : 64,693.37 = 11,108.19 : x
  2. Step 2: Convert to fraction form
    43,129.30/64,693.37 = 11,108.19/x
  3. Step 3: Cross multiply
    43,129.30x = 64,693.37 × 11,108.19
  4. Step 4: Simplify right side
    43,129.30x = 718,626,190.16
  5. Step 5: Solve for x
    x = 718,626,190.16/43,129.30
  6. Step 6: Final answer
    x = 16,662.14

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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.