Home / 54,084.63-81,129.81-16,670.40

Finding the Fourth Proportional to 54,084.63, 81,129.81 and 16,670.40

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Solution

The fourth proportional to 54,084.63, 81,129.81 and 16,670.40 is: 25,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,084.63 : 81,129.81 = 16,670.40 : x
  2. Step 2: Convert to fraction form
    54,084.63/81,129.81 = 16,670.40/x
  3. Step 3: Cross multiply
    54,084.63x = 81,129.81 × 16,670.40
  4. Step 4: Simplify right side
    54,084.63x = 1,352,466,384.62
  5. Step 5: Solve for x
    x = 1,352,466,384.62/54,084.63
  6. Step 6: Final answer
    x = 25,006.48

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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.