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Finding the Fourth Proportional to 56,544.60, 84,816.90 and 54,211.80

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Solution

The fourth proportional to 56,544.60, 84,816.90 and 54,211.80 is: 81,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,544.60 : 84,816.90 = 54,211.80 : x
  2. Step 2: Convert to fraction form
    56,544.60/84,816.90 = 54,211.80/x
  3. Step 3: Cross multiply
    56,544.60x = 84,816.90 × 54,211.80
  4. Step 4: Simplify right side
    56,544.60x = 4,598,076,819.42
  5. Step 5: Solve for x
    x = 4,598,076,819.42/56,544.60
  6. Step 6: Final answer
    x = 81,317.70

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1.5x scale

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.