Home / 57,239.50-85,872.34-19,799.54

Finding the Fourth Proportional to 57,239.50, 85,872.34 and 19,799.54

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Solution

The fourth proportional to 57,239.50, 85,872.34 and 19,799.54 is: 29,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,239.50 : 85,872.34 = 19,799.54 : x
  2. Step 2: Convert to fraction form
    57,239.50/85,872.34 = 19,799.54/x
  3. Step 3: Cross multiply
    57,239.50x = 85,872.34 × 19,799.54
  4. Step 4: Simplify right side
    57,239.50x = 1,700,232,830.72
  5. Step 5: Solve for x
    x = 1,700,232,830.72/57,239.50
  6. Step 6: Final answer
    x = 29,703.84

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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.