Home / 57,100.20-85,650.30-20,164.20

Finding the Fourth Proportional to 57,100.20, 85,650.30 and 20,164.20

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Solution

The fourth proportional to 57,100.20, 85,650.30 and 20,164.20 is: 30,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,100.20 : 85,650.30 = 20,164.20 : x
  2. Step 2: Convert to fraction form
    57,100.20/85,650.30 = 20,164.20/x
  3. Step 3: Cross multiply
    57,100.20x = 85,650.30 × 20,164.20
  4. Step 4: Simplify right side
    57,100.20x = 1,727,069,779.26
  5. Step 5: Solve for x
    x = 1,727,069,779.26/57,100.20
  6. Step 6: Final answer
    x = 30,246.30

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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.