Home / 78,242.42-117,360.37-36,108.50

Finding the Fourth Proportional to 78,242.42, 117,360.37 and 36,108.50

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Solution

The fourth proportional to 78,242.42, 117,360.37 and 36,108.50 is: 54,161.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,242.42 : 117,360.37 = 36,108.50 : x
  2. Step 2: Convert to fraction form
    78,242.42/117,360.37 = 36,108.50/x
  3. Step 3: Cross multiply
    78,242.42x = 117,360.37 × 36,108.50
  4. Step 4: Simplify right side
    78,242.42x = 4,237,706,243.07
  5. Step 5: Solve for x
    x = 4,237,706,243.07/78,242.42
  6. Step 6: Final answer
    x = 54,161.24

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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.