Home / 54,364.36-81,496.68-21,075.88

Finding the Fourth Proportional to 54,364.36, 81,496.68 and 21,075.88

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Solution

The fourth proportional to 54,364.36, 81,496.68 and 21,075.88 is: 31,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,364.36 : 81,496.68 = 21,075.88 : x
  2. Step 2: Convert to fraction form
    54,364.36/81,496.68 = 21,075.88/x
  3. Step 3: Cross multiply
    54,364.36x = 81,496.68 × 21,075.88
  4. Step 4: Simplify right side
    54,364.36x = 1,717,614,248.08
  5. Step 5: Solve for x
    x = 1,717,614,248.08/54,364.36
  6. Step 6: Final answer
    x = 31,594.49

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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.