Home / 54,330.60-81,495.90-49,519.20

Finding the Fourth Proportional to 54,330.60, 81,495.90 and 49,519.20

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Solution

The fourth proportional to 54,330.60, 81,495.90 and 49,519.20 is: 74,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.60 : 81,495.90 = 49,519.20 : x
  2. Step 2: Convert to fraction form
    54,330.60/81,495.90 = 49,519.20/x
  3. Step 3: Cross multiply
    54,330.60x = 81,495.90 × 49,519.20
  4. Step 4: Simplify right side
    54,330.60x = 4,035,611,771.28
  5. Step 5: Solve for x
    x = 4,035,611,771.28/54,330.60
  6. Step 6: Final answer
    x = 74,278.80

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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.