Home / 51,928.54-77,892.81-12,485.65

Finding the Fourth Proportional to 51,928.54, 77,892.81 and 12,485.65

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Solution

The fourth proportional to 51,928.54, 77,892.81 and 12,485.65 is: 18,728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,928.54 : 77,892.81 = 12,485.65 : x
  2. Step 2: Convert to fraction form
    51,928.54/77,892.81 = 12,485.65/x
  3. Step 3: Cross multiply
    51,928.54x = 77,892.81 × 12,485.65
  4. Step 4: Simplify right side
    51,928.54x = 972,542,557.91
  5. Step 5: Solve for x
    x = 972,542,557.91/51,928.54
  6. Step 6: Final answer
    x = 18,728.48

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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.