Home / 54,158.48-81,017.40-45,786.32

Finding the Fourth Proportional to 54,158.48, 81,017.40 and 45,786.32

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Solution

The fourth proportional to 54,158.48, 81,017.40 and 45,786.32 is: 68,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,158.48 : 81,017.40 = 45,786.32 : x
  2. Step 2: Convert to fraction form
    54,158.48/81,017.40 = 45,786.32/x
  3. Step 3: Cross multiply
    54,158.48x = 81,017.40 × 45,786.32
  4. Step 4: Simplify right side
    54,158.48x = 3,709,488,601.97
  5. Step 5: Solve for x
    x = 3,709,488,601.97/54,158.48
  6. Step 6: Final answer
    x = 68,493.22

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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.