Home / 54,301.32-81,401.49-21,043.08

Finding the Fourth Proportional to 54,301.32, 81,401.49 and 21,043.08

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Solution

The fourth proportional to 54,301.32, 81,401.49 and 21,043.08 is: 31,545.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,301.32 : 81,401.49 = 21,043.08 : x
  2. Step 2: Convert to fraction form
    54,301.32/81,401.49 = 21,043.08/x
  3. Step 3: Cross multiply
    54,301.32x = 81,401.49 × 21,043.08
  4. Step 4: Simplify right side
    54,301.32x = 1,712,938,066.19
  5. Step 5: Solve for x
    x = 1,712,938,066.19/54,301.32
  6. Step 6: Final answer
    x = 31,545.05

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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.