Home / 54,621.07-81,951.31-19,087.64

Finding the Fourth Proportional to 54,621.07, 81,951.31 and 19,087.64

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Solution

The fourth proportional to 54,621.07, 81,951.31 and 19,087.64 is: 28,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.07 : 81,951.31 = 19,087.64 : x
  2. Step 2: Convert to fraction form
    54,621.07/81,951.31 = 19,087.64/x
  3. Step 3: Cross multiply
    54,621.07x = 81,951.31 × 19,087.64
  4. Step 4: Simplify right side
    54,621.07x = 1,564,257,024.23
  5. Step 5: Solve for x
    x = 1,564,257,024.23/54,621.07
  6. Step 6: Final answer
    x = 28,638.35

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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.