Home / 55,640.61-83,476.10-20,106.11

Finding the Fourth Proportional to 55,640.61, 83,476.10 and 20,106.11

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Solution

The fourth proportional to 55,640.61, 83,476.10 and 20,106.11 is: 30,164.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640.61 : 83,476.10 = 20,106.11 : x
  2. Step 2: Convert to fraction form
    55,640.61/83,476.10 = 20,106.11/x
  3. Step 3: Cross multiply
    55,640.61x = 83,476.10 × 20,106.11
  4. Step 4: Simplify right side
    55,640.61x = 1,678,379,131.06
  5. Step 5: Solve for x
    x = 1,678,379,131.06/55,640.61
  6. Step 6: Final answer
    x = 30,164.64

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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.