Home / 78,172.41-117,415.46-46,644.04

Finding the Fourth Proportional to 78,172.41, 117,415.46 and 46,644.04

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Solution

The fourth proportional to 78,172.41, 117,415.46 and 46,644.04 is: 70,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,172.41 : 117,415.46 = 46,644.04 : x
  2. Step 2: Convert to fraction form
    78,172.41/117,415.46 = 46,644.04/x
  3. Step 3: Cross multiply
    78,172.41x = 117,415.46 × 46,644.04
  4. Step 4: Simplify right side
    78,172.41x = 5,476,731,412.86
  5. Step 5: Solve for x
    x = 5,476,731,412.86/78,172.41
  6. Step 6: Final answer
    x = 70,059.65

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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.