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Finding the Fourth Proportional to 85,013.66, 117,333.53 and 49,223.40

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Solution

The fourth proportional to 85,013.66, 117,333.53 and 49,223.40 is: 67,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,013.66 : 117,333.53 = 49,223.40 : x
  2. Step 2: Convert to fraction form
    85,013.66/117,333.53 = 49,223.40/x
  3. Step 3: Cross multiply
    85,013.66x = 117,333.53 × 49,223.40
  4. Step 4: Simplify right side
    85,013.66x = 5,775,555,280.60
  5. Step 5: Solve for x
    x = 5,775,555,280.60/85,013.66
  6. Step 6: Final answer
    x = 67,936.79

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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.