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Finding the Fourth Proportional to 54,395.55, 81,601.56 and 19,326.87

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Solution

The fourth proportional to 54,395.55, 81,601.56 and 19,326.87 is: 28,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,395.55 : 81,601.56 = 19,326.87 : x
  2. Step 2: Convert to fraction form
    54,395.55/81,601.56 = 19,326.87/x
  3. Step 3: Cross multiply
    54,395.55x = 81,601.56 × 19,326.87
  4. Step 4: Simplify right side
    54,395.55x = 1,577,102,741.92
  5. Step 5: Solve for x
    x = 1,577,102,741.92/54,395.55
  6. Step 6: Final answer
    x = 28,993.23

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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.