Home / 57,138.34-85,674.67-30,451.48

Finding the Fourth Proportional to 57,138.34, 85,674.67 and 30,451.48

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Solution

The fourth proportional to 57,138.34, 85,674.67 and 30,451.48 is: 45,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,138.34 : 85,674.67 = 30,451.48 : x
  2. Step 2: Convert to fraction form
    57,138.34/85,674.67 = 30,451.48/x
  3. Step 3: Cross multiply
    57,138.34x = 85,674.67 × 30,451.48
  4. Step 4: Simplify right side
    57,138.34x = 2,608,920,500.01
  5. Step 5: Solve for x
    x = 2,608,920,500.01/57,138.34
  6. Step 6: Final answer
    x = 45,659.72

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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.