Home / 51,681.42-77,511.87-14,231.79

Finding the Fourth Proportional to 51,681.42, 77,511.87 and 14,231.79

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Solution

The fourth proportional to 51,681.42, 77,511.87 and 14,231.79 is: 21,344.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,681.42 : 77,511.87 = 14,231.79 : x
  2. Step 2: Convert to fraction form
    51,681.42/77,511.87 = 14,231.79/x
  3. Step 3: Cross multiply
    51,681.42x = 77,511.87 × 14,231.79
  4. Step 4: Simplify right side
    51,681.42x = 1,103,132,656.35
  5. Step 5: Solve for x
    x = 1,103,132,656.35/51,681.42
  6. Step 6: Final answer
    x = 21,344.86

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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.