Home / 85,007.63-117,314.46-49,190.70

Finding the Fourth Proportional to 85,007.63, 117,314.46 and 49,190.70

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Solution

The fourth proportional to 85,007.63, 117,314.46 and 49,190.70 is: 67,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,007.63 : 117,314.46 = 49,190.70 : x
  2. Step 2: Convert to fraction form
    85,007.63/117,314.46 = 49,190.70/x
  3. Step 3: Cross multiply
    85,007.63x = 117,314.46 × 49,190.70
  4. Step 4: Simplify right side
    85,007.63x = 5,770,780,407.52
  5. Step 5: Solve for x
    x = 5,770,780,407.52/85,007.63
  6. Step 6: Final answer
    x = 67,885.44

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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.