Home / 52,143.23-78,168.06-18,855.47

Finding the Fourth Proportional to 52,143.23, 78,168.06 and 18,855.47

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Solution

The fourth proportional to 52,143.23, 78,168.06 and 18,855.47 is: 28,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,143.23 : 78,168.06 = 18,855.47 : x
  2. Step 2: Convert to fraction form
    52,143.23/78,168.06 = 18,855.47/x
  3. Step 3: Cross multiply
    52,143.23x = 78,168.06 × 18,855.47
  4. Step 4: Simplify right side
    52,143.23x = 1,473,895,119.45
  5. Step 5: Solve for x
    x = 1,473,895,119.45/52,143.23
  6. Step 6: Final answer
    x = 28,266.28

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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.