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Finding the Fourth Proportional to 55,367.20, 83,050.80 and 20,302.30

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Solution

The fourth proportional to 55,367.20, 83,050.80 and 20,302.30 is: 30,453.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,367.20 : 83,050.80 = 20,302.30 : x
  2. Step 2: Convert to fraction form
    55,367.20/83,050.80 = 20,302.30/x
  3. Step 3: Cross multiply
    55,367.20x = 83,050.80 × 20,302.30
  4. Step 4: Simplify right side
    55,367.20x = 1,686,122,256.84
  5. Step 5: Solve for x
    x = 1,686,122,256.84/55,367.20
  6. Step 6: Final answer
    x = 30,453.45

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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.