Home / 55,275.21-82,886.90-20,190.33

Finding the Fourth Proportional to 55,275.21, 82,886.90 and 20,190.33

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Solution

The fourth proportional to 55,275.21, 82,886.90 and 20,190.33 is: 30,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.21 : 82,886.90 = 20,190.33 : x
  2. Step 2: Convert to fraction form
    55,275.21/82,886.90 = 20,190.33/x
  3. Step 3: Cross multiply
    55,275.21x = 82,886.90 × 20,190.33
  4. Step 4: Simplify right side
    55,275.21x = 1,673,513,762.73
  5. Step 5: Solve for x
    x = 1,673,513,762.73/55,275.21
  6. Step 6: Final answer
    x = 30,276.03

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1.5x scale

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.