Home / 57,210.80-85,816.20-17,771.90

Finding the Fourth Proportional to 57,210.80, 85,816.20 and 17,771.90

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Solution

The fourth proportional to 57,210.80, 85,816.20 and 17,771.90 is: 26,657.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,210.80 : 85,816.20 = 17,771.90 : x
  2. Step 2: Convert to fraction form
    57,210.80/85,816.20 = 17,771.90/x
  3. Step 3: Cross multiply
    57,210.80x = 85,816.20 × 17,771.90
  4. Step 4: Simplify right side
    57,210.80x = 1,525,116,924.78
  5. Step 5: Solve for x
    x = 1,525,116,924.78/57,210.80
  6. Step 6: Final answer
    x = 26,657.85

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Similar ratio
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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.