Home / 56,089.72-84,135.32-18,649.80

Finding the Fourth Proportional to 56,089.72, 84,135.32 and 18,649.80

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Solution

The fourth proportional to 56,089.72, 84,135.32 and 18,649.80 is: 27,974.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,089.72 : 84,135.32 = 18,649.80 : x
  2. Step 2: Convert to fraction form
    56,089.72/84,135.32 = 18,649.80/x
  3. Step 3: Cross multiply
    56,089.72x = 84,135.32 × 18,649.80
  4. Step 4: Simplify right side
    56,089.72x = 1,569,106,377.01
  5. Step 5: Solve for x
    x = 1,569,106,377.01/56,089.72
  6. Step 6: Final answer
    x = 27,974.94

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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.