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Finding the Fourth Proportional to 56,204.80, 84,404.40 and 54,455.20

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Solution

The fourth proportional to 56,204.80, 84,404.40 and 54,455.20 is: 81,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,204.80 : 84,404.40 = 54,455.20 : x
  2. Step 2: Convert to fraction form
    56,204.80/84,404.40 = 54,455.20/x
  3. Step 3: Cross multiply
    56,204.80x = 84,404.40 × 54,455.20
  4. Step 4: Simplify right side
    56,204.80x = 4,596,258,482.88
  5. Step 5: Solve for x
    x = 4,596,258,482.88/56,204.80
  6. Step 6: Final answer
    x = 81,776.97

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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.