Home / 54,543.16-81,788.73-19,000.10

Finding the Fourth Proportional to 54,543.16, 81,788.73 and 19,000.10

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Solution

The fourth proportional to 54,543.16, 81,788.73 and 19,000.10 is: 28,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,543.16 : 81,788.73 = 19,000.10 : x
  2. Step 2: Convert to fraction form
    54,543.16/81,788.73 = 19,000.10/x
  3. Step 3: Cross multiply
    54,543.16x = 81,788.73 × 19,000.10
  4. Step 4: Simplify right side
    54,543.16x = 1,553,994,442.32
  5. Step 5: Solve for x
    x = 1,553,994,442.32/54,543.16
  6. Step 6: Final answer
    x = 28,491.10

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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.