Home / 55,919.79-83,894.31-20,859.75

Finding the Fourth Proportional to 55,919.79, 83,894.31 and 20,859.75

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Solution

The fourth proportional to 55,919.79, 83,894.31 and 20,859.75 is: 31,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,919.79 : 83,894.31 = 20,859.75 : x
  2. Step 2: Convert to fraction form
    55,919.79/83,894.31 = 20,859.75/x
  3. Step 3: Cross multiply
    55,919.79x = 83,894.31 × 20,859.75
  4. Step 4: Simplify right side
    55,919.79x = 1,750,014,333.02
  5. Step 5: Solve for x
    x = 1,750,014,333.02/55,919.79
  6. Step 6: Final answer
    x = 31,295.08

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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.