Home / 56,086.89-84,146.76-21,029.28

Finding the Fourth Proportional to 56,086.89, 84,146.76 and 21,029.28

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Solution

The fourth proportional to 56,086.89, 84,146.76 and 21,029.28 is: 31,550.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,086.89 : 84,146.76 = 21,029.28 : x
  2. Step 2: Convert to fraction form
    56,086.89/84,146.76 = 21,029.28/x
  3. Step 3: Cross multiply
    56,086.89x = 84,146.76 × 21,029.28
  4. Step 4: Simplify right side
    56,086.89x = 1,769,545,777.13
  5. Step 5: Solve for x
    x = 1,769,545,777.13/56,086.89
  6. Step 6: Final answer
    x = 31,550.08

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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.