Home / 84,786.39-117,005.94-48,975.57

Finding the Fourth Proportional to 84,786.39, 117,005.94 and 48,975.57

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Solution

The fourth proportional to 84,786.39, 117,005.94 and 48,975.57 is: 67,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,786.39 : 117,005.94 = 48,975.57 : x
  2. Step 2: Convert to fraction form
    84,786.39/117,005.94 = 48,975.57/x
  3. Step 3: Cross multiply
    84,786.39x = 117,005.94 × 48,975.57
  4. Step 4: Simplify right side
    84,786.39x = 5,730,432,604.89
  5. Step 5: Solve for x
    x = 5,730,432,604.89/84,786.39
  6. Step 6: Final answer
    x = 67,586.70

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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.