Home / 78,922.62-118,361.73-21,983.58

Finding the Fourth Proportional to 78,922.62, 118,361.73 and 21,983.58

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Solution

The fourth proportional to 78,922.62, 118,361.73 and 21,983.58 is: 32,969.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,922.62 : 118,361.73 = 21,983.58 : x
  2. Step 2: Convert to fraction form
    78,922.62/118,361.73 = 21,983.58/x
  3. Step 3: Cross multiply
    78,922.62x = 118,361.73 × 21,983.58
  4. Step 4: Simplify right side
    78,922.62x = 2,602,014,560.39
  5. Step 5: Solve for x
    x = 2,602,014,560.39/78,922.62
  6. Step 6: Final answer
    x = 32,969.19

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1.5x scale

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.