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Finding the Fourth Proportional to 54,342.60, 81,513.90 and 14,903.70

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Solution

The fourth proportional to 54,342.60, 81,513.90 and 14,903.70 is: 22,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,342.60 : 81,513.90 = 14,903.70 : x
  2. Step 2: Convert to fraction form
    54,342.60/81,513.90 = 14,903.70/x
  3. Step 3: Cross multiply
    54,342.60x = 81,513.90 × 14,903.70
  4. Step 4: Simplify right side
    54,342.60x = 1,214,858,711.43
  5. Step 5: Solve for x
    x = 1,214,858,711.43/54,342.60
  6. Step 6: Final answer
    x = 22,355.55

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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.