Home / 56,086.49-84,111.53-18,636.51

Finding the Fourth Proportional to 56,086.49, 84,111.53 and 18,636.51

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Solution

The fourth proportional to 56,086.49, 84,111.53 and 18,636.51 is: 27,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,086.49 : 84,111.53 = 18,636.51 : x
  2. Step 2: Convert to fraction form
    56,086.49/84,111.53 = 18,636.51/x
  3. Step 3: Cross multiply
    56,086.49x = 84,111.53 × 18,636.51
  4. Step 4: Simplify right side
    56,086.49x = 1,567,545,369.96
  5. Step 5: Solve for x
    x = 1,567,545,369.96/56,086.49
  6. Step 6: Final answer
    x = 27,948.72

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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.