Home / 55,421.06-83,164.70-20,364.26

Finding the Fourth Proportional to 55,421.06, 83,164.70 and 20,364.26

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Solution

The fourth proportional to 55,421.06, 83,164.70 and 20,364.26 is: 30,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,421.06 : 83,164.70 = 20,364.26 : x
  2. Step 2: Convert to fraction form
    55,421.06/83,164.70 = 20,364.26/x
  3. Step 3: Cross multiply
    55,421.06x = 83,164.70 × 20,364.26
  4. Step 4: Simplify right side
    55,421.06x = 1,693,587,208.71
  5. Step 5: Solve for x
    x = 1,693,587,208.71/55,421.06
  6. Step 6: Final answer
    x = 30,558.55

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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.