Home / 54,913.77-82,339.41-21,615.78

Finding the Fourth Proportional to 54,913.77, 82,339.41 and 21,615.78

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Solution

The fourth proportional to 54,913.77, 82,339.41 and 21,615.78 is: 32,411.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,913.77 : 82,339.41 = 21,615.78 : x
  2. Step 2: Convert to fraction form
    54,913.77/82,339.41 = 21,615.78/x
  3. Step 3: Cross multiply
    54,913.77x = 82,339.41 × 21,615.78
  4. Step 4: Simplify right side
    54,913.77x = 1,779,830,571.89
  5. Step 5: Solve for x
    x = 1,779,830,571.89/54,913.77
  6. Step 6: Final answer
    x = 32,411.37

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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.