Home / 52,015.68-78,030-16,945.92

Finding the Fourth Proportional to 52,015.68, 78,030 and 16,945.92

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Solution

The fourth proportional to 52,015.68, 78,030 and 16,945.92 is: 25,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,015.68 : 78,030 = 16,945.92 : x
  2. Step 2: Convert to fraction form
    52,015.68/78,030 = 16,945.92/x
  3. Step 3: Cross multiply
    52,015.68x = 78,030 × 16,945.92
  4. Step 4: Simplify right side
    52,015.68x = 1,322,290,137.60
  5. Step 5: Solve for x
    x = 1,322,290,137.60/52,015.68
  6. Step 6: Final answer
    x = 25,420.99

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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.