Home / 51,128.19-76,621.41-38,637.99

Finding the Fourth Proportional to 51,128.19, 76,621.41 and 38,637.99

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Solution

The fourth proportional to 51,128.19, 76,621.41 and 38,637.99 is: 57,903.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,128.19 : 76,621.41 = 38,637.99 : x
  2. Step 2: Convert to fraction form
    51,128.19/76,621.41 = 38,637.99/x
  3. Step 3: Cross multiply
    51,128.19x = 76,621.41 × 38,637.99
  4. Step 4: Simplify right side
    51,128.19x = 2,960,497,273.37
  5. Step 5: Solve for x
    x = 2,960,497,273.37/51,128.19
  6. Step 6: Final answer
    x = 57,903.42

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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.