Home / 83,780.48-115,617.12-46,055.36

Finding the Fourth Proportional to 83,780.48, 115,617.12 and 46,055.36

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Solution

The fourth proportional to 83,780.48, 115,617.12 and 46,055.36 is: 63,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,780.48 : 115,617.12 = 46,055.36 : x
  2. Step 2: Convert to fraction form
    83,780.48/115,617.12 = 46,055.36/x
  3. Step 3: Cross multiply
    83,780.48x = 115,617.12 × 46,055.36
  4. Step 4: Simplify right side
    83,780.48x = 5,324,788,083.76
  5. Step 5: Solve for x
    x = 5,324,788,083.76/83,780.48
  6. Step 6: Final answer
    x = 63,556.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.