Home / 54,689.49-82,038.26-19,629.45

Finding the Fourth Proportional to 54,689.49, 82,038.26 and 19,629.45

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Solution

The fourth proportional to 54,689.49, 82,038.26 and 19,629.45 is: 29,445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,689.49 : 82,038.26 = 19,629.45 : x
  2. Step 2: Convert to fraction form
    54,689.49/82,038.26 = 19,629.45/x
  3. Step 3: Cross multiply
    54,689.49x = 82,038.26 × 19,629.45
  4. Step 4: Simplify right side
    54,689.49x = 1,610,365,824.61
  5. Step 5: Solve for x
    x = 1,610,365,824.61/54,689.49
  6. Step 6: Final answer
    x = 29,445.62

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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.