Home / 51,491.07-71,059.41-28,831.01

Finding the Fourth Proportional to 51,491.07, 71,059.41 and 28,831.01

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Solution

The fourth proportional to 51,491.07, 71,059.41 and 28,831.01 is: 39,787.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,491.07 : 71,059.41 = 28,831.01 : x
  2. Step 2: Convert to fraction form
    51,491.07/71,059.41 = 28,831.01/x
  3. Step 3: Cross multiply
    51,491.07x = 71,059.41 × 28,831.01
  4. Step 4: Simplify right side
    51,491.07x = 2,048,714,205.01
  5. Step 5: Solve for x
    x = 2,048,714,205.01/51,491.07
  6. Step 6: Final answer
    x = 39,787.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.