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Finding the Fourth Proportional to 54,444.40, 81,666.60 and 19,423.60

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Solution

The fourth proportional to 54,444.40, 81,666.60 and 19,423.60 is: 29,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,444.40 : 81,666.60 = 19,423.60 : x
  2. Step 2: Convert to fraction form
    54,444.40/81,666.60 = 19,423.60/x
  3. Step 3: Cross multiply
    54,444.40x = 81,666.60 × 19,423.60
  4. Step 4: Simplify right side
    54,444.40x = 1,586,259,371.76
  5. Step 5: Solve for x
    x = 1,586,259,371.76/54,444.40
  6. Step 6: Final answer
    x = 29,135.40

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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.