Home / 66,368.30-99,318.56-41,420.09

Finding the Fourth Proportional to 66,368.30, 99,318.56 and 41,420.09

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Solution

The fourth proportional to 66,368.30, 99,318.56 and 41,420.09 is: 61,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,368.30 : 99,318.56 = 41,420.09 : x
  2. Step 2: Convert to fraction form
    66,368.30/99,318.56 = 41,420.09/x
  3. Step 3: Cross multiply
    66,368.30x = 99,318.56 × 41,420.09
  4. Step 4: Simplify right side
    66,368.30x = 4,113,783,735.07
  5. Step 5: Solve for x
    x = 4,113,783,735.07/66,368.30
  6. Step 6: Final answer
    x = 61,984.17

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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.