Home / 55,823.20-83,685.58-20,738.25

Finding the Fourth Proportional to 55,823.20, 83,685.58 and 20,738.25

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Solution

The fourth proportional to 55,823.20, 83,685.58 and 20,738.25 is: 31,089.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,823.20 : 83,685.58 = 20,738.25 : x
  2. Step 2: Convert to fraction form
    55,823.20/83,685.58 = 20,738.25/x
  3. Step 3: Cross multiply
    55,823.20x = 83,685.58 × 20,738.25
  4. Step 4: Simplify right side
    55,823.20x = 1,735,492,427.59
  5. Step 5: Solve for x
    x = 1,735,492,427.59/55,823.20
  6. Step 6: Final answer
    x = 31,089.09

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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.