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Finding the Fourth Proportional to 56,281.50, 84,451.41 and 28,579.50

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Solution

The fourth proportional to 56,281.50, 84,451.41 and 28,579.50 is: 42,884.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,281.50 : 84,451.41 = 28,579.50 : x
  2. Step 2: Convert to fraction form
    56,281.50/84,451.41 = 28,579.50/x
  3. Step 3: Cross multiply
    56,281.50x = 84,451.41 × 28,579.50
  4. Step 4: Simplify right side
    56,281.50x = 2,413,579,072.10
  5. Step 5: Solve for x
    x = 2,413,579,072.10/56,281.50
  6. Step 6: Final answer
    x = 42,884.06

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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.