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Finding the Fourth Proportional to 56,914.70, 85,372.05 and 27,390.20

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Solution

The fourth proportional to 56,914.70, 85,372.05 and 27,390.20 is: 41,085.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,914.70 : 85,372.05 = 27,390.20 : x
  2. Step 2: Convert to fraction form
    56,914.70/85,372.05 = 27,390.20/x
  3. Step 3: Cross multiply
    56,914.70x = 85,372.05 × 27,390.20
  4. Step 4: Simplify right side
    56,914.70x = 2,338,357,523.91
  5. Step 5: Solve for x
    x = 2,338,357,523.91/56,914.70
  6. Step 6: Final answer
    x = 41,085.30

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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.