Home / 66,633.12-99,750.42-40,257.90

Finding the Fourth Proportional to 66,633.12, 99,750.42 and 40,257.90

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Solution

The fourth proportional to 66,633.12, 99,750.42 and 40,257.90 is: 60,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,633.12 : 99,750.42 = 40,257.90 : x
  2. Step 2: Convert to fraction form
    66,633.12/99,750.42 = 40,257.90/x
  3. Step 3: Cross multiply
    66,633.12x = 99,750.42 × 40,257.90
  4. Step 4: Simplify right side
    66,633.12x = 4,015,742,433.32
  5. Step 5: Solve for x
    x = 4,015,742,433.32/66,633.12
  6. Step 6: Final answer
    x = 60,266.46

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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.