Home / 56,286.40-84,327.20-45,841.60

Finding the Fourth Proportional to 56,286.40, 84,327.20 and 45,841.60

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Solution

The fourth proportional to 56,286.40, 84,327.20 and 45,841.60 is: 68,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,286.40 : 84,327.20 = 45,841.60 : x
  2. Step 2: Convert to fraction form
    56,286.40/84,327.20 = 45,841.60/x
  3. Step 3: Cross multiply
    56,286.40x = 84,327.20 × 45,841.60
  4. Step 4: Simplify right side
    56,286.40x = 3,865,693,771.52
  5. Step 5: Solve for x
    x = 3,865,693,771.52/56,286.40
  6. Step 6: Final answer
    x = 68,679.00

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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.