Home / 54,623.20-81,954.54-19,089.76

Finding the Fourth Proportional to 54,623.20, 81,954.54 and 19,089.76

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Solution

The fourth proportional to 54,623.20, 81,954.54 and 19,089.76 is: 28,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,623.20 : 81,954.54 = 19,089.76 : x
  2. Step 2: Convert to fraction form
    54,623.20/81,954.54 = 19,089.76/x
  3. Step 3: Cross multiply
    54,623.20x = 81,954.54 × 19,089.76
  4. Step 4: Simplify right side
    54,623.20x = 1,564,492,499.51
  5. Step 5: Solve for x
    x = 1,564,492,499.51/54,623.20
  6. Step 6: Final answer
    x = 28,641.54

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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.