Home / 79,036.36-118,554.64-19,872.03

Finding the Fourth Proportional to 79,036.36, 118,554.64 and 19,872.03

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Solution

The fourth proportional to 79,036.36, 118,554.64 and 19,872.03 is: 29,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,036.36 : 118,554.64 = 19,872.03 : x
  2. Step 2: Convert to fraction form
    79,036.36/118,554.64 = 19,872.03/x
  3. Step 3: Cross multiply
    79,036.36x = 118,554.64 × 19,872.03
  4. Step 4: Simplify right side
    79,036.36x = 2,355,921,757.62
  5. Step 5: Solve for x
    x = 2,355,921,757.62/79,036.36
  6. Step 6: Final answer
    x = 29,808.08

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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.