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Finding the Fourth Proportional to 54,555.60, 81,814.20 and 19,496.40

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Solution

The fourth proportional to 54,555.60, 81,814.20 and 19,496.40 is: 29,237.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,555.60 : 81,814.20 = 19,496.40 : x
  2. Step 2: Convert to fraction form
    54,555.60/81,814.20 = 19,496.40/x
  3. Step 3: Cross multiply
    54,555.60x = 81,814.20 × 19,496.40
  4. Step 4: Simplify right side
    54,555.60x = 1,595,082,368.88
  5. Step 5: Solve for x
    x = 1,595,082,368.88/54,555.60
  6. Step 6: Final answer
    x = 29,237.74

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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.