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Finding the Fourth Proportional to 85,292.58, 117,702.44 and 49,488.74

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Solution

The fourth proportional to 85,292.58, 117,702.44 and 49,488.74 is: 68,293.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,292.58 : 117,702.44 = 49,488.74 : x
  2. Step 2: Convert to fraction form
    85,292.58/117,702.44 = 49,488.74/x
  3. Step 3: Cross multiply
    85,292.58x = 117,702.44 × 49,488.74
  4. Step 4: Simplify right side
    85,292.58x = 5,824,945,450.53
  5. Step 5: Solve for x
    x = 5,824,945,450.53/85,292.58
  6. Step 6: Final answer
    x = 68,293.70

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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.