Home / 54,215.66-81,307.87-18,675.54

Finding the Fourth Proportional to 54,215.66, 81,307.87 and 18,675.54

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Solution

The fourth proportional to 54,215.66, 81,307.87 and 18,675.54 is: 28,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,215.66 : 81,307.87 = 18,675.54 : x
  2. Step 2: Convert to fraction form
    54,215.66/81,307.87 = 18,675.54/x
  3. Step 3: Cross multiply
    54,215.66x = 81,307.87 × 18,675.54
  4. Step 4: Simplify right side
    54,215.66x = 1,518,468,331.81
  5. Step 5: Solve for x
    x = 1,518,468,331.81/54,215.66
  6. Step 6: Final answer
    x = 28,007.93

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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.