Home / 66,368.42-99,318.67-41,420.15

Finding the Fourth Proportional to 66,368.42, 99,318.67 and 41,420.15

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Solution

The fourth proportional to 66,368.42, 99,318.67 and 41,420.15 is: 61,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,368.42 : 99,318.67 = 41,420.15 : x
  2. Step 2: Convert to fraction form
    66,368.42/99,318.67 = 41,420.15/x
  3. Step 3: Cross multiply
    66,368.42x = 99,318.67 × 41,420.15
  4. Step 4: Simplify right side
    66,368.42x = 4,113,794,209.20
  5. Step 5: Solve for x
    x = 4,113,794,209.20/66,368.42
  6. Step 6: Final answer
    x = 61,984.21

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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.