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Finding the Fourth Proportional to 54,310, 81,464.94 and 14,870.20

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Solution

The fourth proportional to 54,310, 81,464.94 and 14,870.20 is: 22,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,310 : 81,464.94 = 14,870.20 : x
  2. Step 2: Convert to fraction form
    54,310/81,464.94 = 14,870.20/x
  3. Step 3: Cross multiply
    54,310x = 81,464.94 × 14,870.20
  4. Step 4: Simplify right side
    54,310x = 1,211,399,950.79
  5. Step 5: Solve for x
    x = 1,211,399,950.79/54,310
  6. Step 6: Final answer
    x = 22,305.28

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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.