Home / 51,584.81-77,384.09-20,412.77

Finding the Fourth Proportional to 51,584.81, 77,384.09 and 20,412.77

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Solution

The fourth proportional to 51,584.81, 77,384.09 and 20,412.77 is: 30,621.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,584.81 : 77,384.09 = 20,412.77 : x
  2. Step 2: Convert to fraction form
    51,584.81/77,384.09 = 20,412.77/x
  3. Step 3: Cross multiply
    51,584.81x = 77,384.09 × 20,412.77
  4. Step 4: Simplify right side
    51,584.81x = 1,579,623,294.94
  5. Step 5: Solve for x
    x = 1,579,623,294.94/51,584.81
  6. Step 6: Final answer
    x = 30,621.87

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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.