Home / 54,528.40-81,792.60-45,845.20

Finding the Fourth Proportional to 54,528.40, 81,792.60 and 45,845.20

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Solution

The fourth proportional to 54,528.40, 81,792.60 and 45,845.20 is: 68,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,528.40 : 81,792.60 = 45,845.20 : x
  2. Step 2: Convert to fraction form
    54,528.40/81,792.60 = 45,845.20/x
  3. Step 3: Cross multiply
    54,528.40x = 81,792.60 × 45,845.20
  4. Step 4: Simplify right side
    54,528.40x = 3,749,798,105.52
  5. Step 5: Solve for x
    x = 3,749,798,105.52/54,528.40
  6. Step 6: Final answer
    x = 68,767.80

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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.