Home / 52,790.15-79,184.60-21,199.65

Finding the Fourth Proportional to 52,790.15, 79,184.60 and 21,199.65

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Solution

The fourth proportional to 52,790.15, 79,184.60 and 21,199.65 is: 31,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,790.15 : 79,184.60 = 21,199.65 : x
  2. Step 2: Convert to fraction form
    52,790.15/79,184.60 = 21,199.65/x
  3. Step 3: Cross multiply
    52,790.15x = 79,184.60 × 21,199.65
  4. Step 4: Simplify right side
    52,790.15x = 1,678,685,699.39
  5. Step 5: Solve for x
    x = 1,678,685,699.39/52,790.15
  6. Step 6: Final answer
    x = 31,799.22

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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.