Home / 42,072.55-63,090.36-15,758.83

Finding the Fourth Proportional to 42,072.55, 63,090.36 and 15,758.83

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Solution

The fourth proportional to 42,072.55, 63,090.36 and 15,758.83 is: 23,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,072.55 : 63,090.36 = 15,758.83 : x
  2. Step 2: Convert to fraction form
    42,072.55/63,090.36 = 15,758.83/x
  3. Step 3: Cross multiply
    42,072.55x = 63,090.36 × 15,758.83
  4. Step 4: Simplify right side
    42,072.55x = 994,230,257.88
  5. Step 5: Solve for x
    x = 994,230,257.88/42,072.55
  6. Step 6: Final answer
    x = 23,631.33

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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.