Home / 81,921.06-122,880.78-37,535.22

Finding the Fourth Proportional to 81,921.06, 122,880.78 and 37,535.22

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Solution

The fourth proportional to 81,921.06, 122,880.78 and 37,535.22 is: 56,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,921.06 : 122,880.78 = 37,535.22 : x
  2. Step 2: Convert to fraction form
    81,921.06/122,880.78 = 37,535.22/x
  3. Step 3: Cross multiply
    81,921.06x = 122,880.78 × 37,535.22
  4. Step 4: Simplify right side
    81,921.06x = 4,612,357,111.07
  5. Step 5: Solve for x
    x = 4,612,357,111.07/81,921.06
  6. Step 6: Final answer
    x = 56,302.46

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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.