Home / 52,282.91-78,389.73-18,999.05

Finding the Fourth Proportional to 52,282.91, 78,389.73 and 18,999.05

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Solution

The fourth proportional to 52,282.91, 78,389.73 and 18,999.05 is: 28,485.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,282.91 : 78,389.73 = 18,999.05 : x
  2. Step 2: Convert to fraction form
    52,282.91/78,389.73 = 18,999.05/x
  3. Step 3: Cross multiply
    52,282.91x = 78,389.73 × 18,999.05
  4. Step 4: Simplify right side
    52,282.91x = 1,489,330,007.81
  5. Step 5: Solve for x
    x = 1,489,330,007.81/52,282.91
  6. Step 6: Final answer
    x = 28,485.98

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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.