Home / 88,173.45-121,678.97-47,886.89

Finding the Fourth Proportional to 88,173.45, 121,678.97 and 47,886.89

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Solution

The fourth proportional to 88,173.45, 121,678.97 and 47,886.89 is: 66,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,173.45 : 121,678.97 = 47,886.89 : x
  2. Step 2: Convert to fraction form
    88,173.45/121,678.97 = 47,886.89/x
  3. Step 3: Cross multiply
    88,173.45x = 121,678.97 × 47,886.89
  4. Step 4: Simplify right side
    88,173.45x = 5,826,826,603.87
  5. Step 5: Solve for x
    x = 5,826,826,603.87/88,173.45
  6. Step 6: Final answer
    x = 66,083.69

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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.