Home / 51,927.90-77,891.80-12,485

Finding the Fourth Proportional to 51,927.90, 77,891.80 and 12,485

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Solution

The fourth proportional to 51,927.90, 77,891.80 and 12,485 is: 18,727.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,927.90 : 77,891.80 = 12,485 : x
  2. Step 2: Convert to fraction form
    51,927.90/77,891.80 = 12,485/x
  3. Step 3: Cross multiply
    51,927.90x = 77,891.80 × 12,485
  4. Step 4: Simplify right side
    51,927.90x = 972,479,123
  5. Step 5: Solve for x
    x = 972,479,123/51,927.90
  6. Step 6: Final answer
    x = 18,727.49

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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.