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Finding the Fourth Proportional to 54,495.60, 81,962.10 and 48,809.40

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Solution

The fourth proportional to 54,495.60, 81,962.10 and 48,809.40 is: 73,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,495.60 : 81,962.10 = 48,809.40 : x
  2. Step 2: Convert to fraction form
    54,495.60/81,962.10 = 48,809.40/x
  3. Step 3: Cross multiply
    54,495.60x = 81,962.10 × 48,809.40
  4. Step 4: Simplify right side
    54,495.60x = 4,000,520,923.74
  5. Step 5: Solve for x
    x = 4,000,520,923.74/54,495.60
  6. Step 6: Final answer
    x = 73,409.98

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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.