Home / 52,294.08-78,416.52-18,990.84

Finding the Fourth Proportional to 52,294.08, 78,416.52 and 18,990.84

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Solution

The fourth proportional to 52,294.08, 78,416.52 and 18,990.84 is: 28,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,294.08 : 78,416.52 = 18,990.84 : x
  2. Step 2: Convert to fraction form
    52,294.08/78,416.52 = 18,990.84/x
  3. Step 3: Cross multiply
    52,294.08x = 78,416.52 × 18,990.84
  4. Step 4: Simplify right side
    52,294.08x = 1,489,195,584.68
  5. Step 5: Solve for x
    x = 1,489,195,584.68/52,294.08
  6. Step 6: Final answer
    x = 28,477.33

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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.