Home / 55,938.60-83,922.36-20,878.56

Finding the Fourth Proportional to 55,938.60, 83,922.36 and 20,878.56

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Solution

The fourth proportional to 55,938.60, 83,922.36 and 20,878.56 is: 31,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,938.60 : 83,922.36 = 20,878.56 : x
  2. Step 2: Convert to fraction form
    55,938.60/83,922.36 = 20,878.56/x
  3. Step 3: Cross multiply
    55,938.60x = 83,922.36 × 20,878.56
  4. Step 4: Simplify right side
    55,938.60x = 1,752,178,028.60
  5. Step 5: Solve for x
    x = 1,752,178,028.60/55,938.60
  6. Step 6: Final answer
    x = 31,323.24

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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.