Home / 52,070.63-78,089.74-18,786.33

Finding the Fourth Proportional to 52,070.63, 78,089.74 and 18,786.33

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Solution

The fourth proportional to 52,070.63, 78,089.74 and 18,786.33 is: 28,173.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,070.63 : 78,089.74 = 18,786.33 : x
  2. Step 2: Convert to fraction form
    52,070.63/78,089.74 = 18,786.33/x
  3. Step 3: Cross multiply
    52,070.63x = 78,089.74 × 18,786.33
  4. Step 4: Simplify right side
    52,070.63x = 1,467,019,578.29
  5. Step 5: Solve for x
    x = 1,467,019,578.29/52,070.63
  6. Step 6: Final answer
    x = 28,173.65

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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.