Home / 55,901.76-83,851.80-13,782.36

Finding the Fourth Proportional to 55,901.76, 83,851.80 and 13,782.36

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Solution

The fourth proportional to 55,901.76, 83,851.80 and 13,782.36 is: 20,673.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,901.76 : 83,851.80 = 13,782.36 : x
  2. Step 2: Convert to fraction form
    55,901.76/83,851.80 = 13,782.36/x
  3. Step 3: Cross multiply
    55,901.76x = 83,851.80 × 13,782.36
  4. Step 4: Simplify right side
    55,901.76x = 1,155,675,694.25
  5. Step 5: Solve for x
    x = 1,155,675,694.25/55,901.76
  6. Step 6: Final answer
    x = 20,673.33

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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.