Home / 66,907.08-100,369.80-38,840.31

Finding the Fourth Proportional to 66,907.08, 100,369.80 and 38,840.31

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Solution

The fourth proportional to 66,907.08, 100,369.80 and 38,840.31 is: 58,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,907.08 : 100,369.80 = 38,840.31 : x
  2. Step 2: Convert to fraction form
    66,907.08/100,369.80 = 38,840.31/x
  3. Step 3: Cross multiply
    66,907.08x = 100,369.80 × 38,840.31
  4. Step 4: Simplify right side
    66,907.08x = 3,898,394,146.64
  5. Step 5: Solve for x
    x = 3,898,394,146.64/66,907.08
  6. Step 6: Final answer
    x = 58,265.79

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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.