Home / 57,008.80-85,367.40-42,137.20

Finding the Fourth Proportional to 57,008.80, 85,367.40 and 42,137.20

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Solution

The fourth proportional to 57,008.80, 85,367.40 and 42,137.20 is: 63,098.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.80 : 85,367.40 = 42,137.20 : x
  2. Step 2: Convert to fraction form
    57,008.80/85,367.40 = 42,137.20/x
  3. Step 3: Cross multiply
    57,008.80x = 85,367.40 × 42,137.20
  4. Step 4: Simplify right side
    57,008.80x = 3,597,143,207.28
  5. Step 5: Solve for x
    x = 3,597,143,207.28/57,008.80
  6. Step 6: Final answer
    x = 63,098.03

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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.