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Finding the Fourth Proportional to 54,310.60, 81,465.90 and 49,499.20

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Solution

The fourth proportional to 54,310.60, 81,465.90 and 49,499.20 is: 74,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,310.60 : 81,465.90 = 49,499.20 : x
  2. Step 2: Convert to fraction form
    54,310.60/81,465.90 = 49,499.20/x
  3. Step 3: Cross multiply
    54,310.60x = 81,465.90 × 49,499.20
  4. Step 4: Simplify right side
    54,310.60x = 4,032,496,877.28
  5. Step 5: Solve for x
    x = 4,032,496,877.28/54,310.60
  6. Step 6: Final answer
    x = 74,248.80

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1.5x scale

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.