Home / 88,193.75-121,707.49-47,907.51

Finding the Fourth Proportional to 88,193.75, 121,707.49 and 47,907.51

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Solution

The fourth proportional to 88,193.75, 121,707.49 and 47,907.51 is: 66,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,193.75 : 121,707.49 = 47,907.51 : x
  2. Step 2: Convert to fraction form
    88,193.75/121,707.49 = 47,907.51/x
  3. Step 3: Cross multiply
    88,193.75x = 121,707.49 × 47,907.51
  4. Step 4: Simplify right side
    88,193.75x = 5,830,702,185.71
  5. Step 5: Solve for x
    x = 5,830,702,185.71/88,193.75
  6. Step 6: Final answer
    x = 66,112.42

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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.