Home / 43,102.16-64,654.32-11,937.68

Finding the Fourth Proportional to 43,102.16, 64,654.32 and 11,937.68

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Solution

The fourth proportional to 43,102.16, 64,654.32 and 11,937.68 is: 17,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,102.16 : 64,654.32 = 11,937.68 : x
  2. Step 2: Convert to fraction form
    43,102.16/64,654.32 = 11,937.68/x
  3. Step 3: Cross multiply
    43,102.16x = 64,654.32 × 11,937.68
  4. Step 4: Simplify right side
    43,102.16x = 771,822,259.51
  5. Step 5: Solve for x
    x = 771,822,259.51/43,102.16
  6. Step 6: Final answer
    x = 17,906.81

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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.