Home / 55,140.44-82,661.16-20,055.50

Finding the Fourth Proportional to 55,140.44, 82,661.16 and 20,055.50

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Solution

The fourth proportional to 55,140.44, 82,661.16 and 20,055.50 is: 30,065.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,140.44 : 82,661.16 = 20,055.50 : x
  2. Step 2: Convert to fraction form
    55,140.44/82,661.16 = 20,055.50/x
  3. Step 3: Cross multiply
    55,140.44x = 82,661.16 × 20,055.50
  4. Step 4: Simplify right side
    55,140.44x = 1,657,810,894.38
  5. Step 5: Solve for x
    x = 1,657,810,894.38/55,140.44
  6. Step 6: Final answer
    x = 30,065.25

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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.