Home / 54,414.14-81,572-19,345.59

Finding the Fourth Proportional to 54,414.14, 81,572 and 19,345.59

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Solution

The fourth proportional to 54,414.14, 81,572 and 19,345.59 is: 29,000.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,414.14 : 81,572 = 19,345.59 : x
  2. Step 2: Convert to fraction form
    54,414.14/81,572 = 19,345.59/x
  3. Step 3: Cross multiply
    54,414.14x = 81,572 × 19,345.59
  4. Step 4: Simplify right side
    54,414.14x = 1,578,058,467.48
  5. Step 5: Solve for x
    x = 1,578,058,467.48/54,414.14
  6. Step 6: Final answer
    x = 29,000.89

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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.