Home / 51,928.89-77,893.30-12,485.99

Finding the Fourth Proportional to 51,928.89, 77,893.30 and 12,485.99

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Solution

The fourth proportional to 51,928.89, 77,893.30 and 12,485.99 is: 18,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,928.89 : 77,893.30 = 12,485.99 : x
  2. Step 2: Convert to fraction form
    51,928.89/77,893.30 = 12,485.99/x
  3. Step 3: Cross multiply
    51,928.89x = 77,893.30 × 12,485.99
  4. Step 4: Simplify right side
    51,928.89x = 972,574,964.87
  5. Step 5: Solve for x
    x = 972,574,964.87/51,928.89
  6. Step 6: Final answer
    x = 18,728.98

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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.