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Finding the Fourth Proportional to 54,296.40, 81,444.60 and 19,239.60

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Solution

The fourth proportional to 54,296.40, 81,444.60 and 19,239.60 is: 28,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,296.40 : 81,444.60 = 19,239.60 : x
  2. Step 2: Convert to fraction form
    54,296.40/81,444.60 = 19,239.60/x
  3. Step 3: Cross multiply
    54,296.40x = 81,444.60 × 19,239.60
  4. Step 4: Simplify right side
    54,296.40x = 1,566,961,526.16
  5. Step 5: Solve for x
    x = 1,566,961,526.16/54,296.40
  6. Step 6: Final answer
    x = 28,859.40

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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.