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Finding the Fourth Proportional to 56,101.20, 84,184.20 and 21,044.40

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Solution

The fourth proportional to 56,101.20, 84,184.20 and 21,044.40 is: 31,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,101.20 : 84,184.20 = 21,044.40 : x
  2. Step 2: Convert to fraction form
    56,101.20/84,184.20 = 21,044.40/x
  3. Step 3: Cross multiply
    56,101.20x = 84,184.20 × 21,044.40
  4. Step 4: Simplify right side
    56,101.20x = 1,771,605,978.48
  5. Step 5: Solve for x
    x = 1,771,605,978.48/56,101.20
  6. Step 6: Final answer
    x = 31,578.75

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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.