Home / 52,978.35-79,436.75-21,362.54

Finding the Fourth Proportional to 52,978.35, 79,436.75 and 21,362.54

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Solution

The fourth proportional to 52,978.35, 79,436.75 and 21,362.54 is: 32,031.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,978.35 : 79,436.75 = 21,362.54 : x
  2. Step 2: Convert to fraction form
    52,978.35/79,436.75 = 21,362.54/x
  3. Step 3: Cross multiply
    52,978.35x = 79,436.75 × 21,362.54
  4. Step 4: Simplify right side
    52,978.35x = 1,696,970,365.51
  5. Step 5: Solve for x
    x = 1,696,970,365.51/52,978.35
  6. Step 6: Final answer
    x = 32,031.39

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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.