Home / 56,111.76-84,145.77-21,032.28

Finding the Fourth Proportional to 56,111.76, 84,145.77 and 21,032.28

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Solution

The fourth proportional to 56,111.76, 84,145.77 and 21,032.28 is: 31,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,111.76 : 84,145.77 = 21,032.28 : x
  2. Step 2: Convert to fraction form
    56,111.76/84,145.77 = 21,032.28/x
  3. Step 3: Cross multiply
    56,111.76x = 84,145.77 × 21,032.28
  4. Step 4: Simplify right side
    56,111.76x = 1,769,777,395.46
  5. Step 5: Solve for x
    x = 1,769,777,395.46/56,111.76
  6. Step 6: Final answer
    x = 31,540.22

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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.