Home / 54,607.19-81,930.47-19,073.72

Finding the Fourth Proportional to 54,607.19, 81,930.47 and 19,073.72

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Solution

The fourth proportional to 54,607.19, 81,930.47 and 19,073.72 is: 28,617.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,607.19 : 81,930.47 = 19,073.72 : x
  2. Step 2: Convert to fraction form
    54,607.19/81,930.47 = 19,073.72/x
  3. Step 3: Cross multiply
    54,607.19x = 81,930.47 × 19,073.72
  4. Step 4: Simplify right side
    54,607.19x = 1,562,718,339.23
  5. Step 5: Solve for x
    x = 1,562,718,339.23/54,607.19
  6. Step 6: Final answer
    x = 28,617.45

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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.