Home / 85,245.36-117,639.44-47,006.28

Finding the Fourth Proportional to 85,245.36, 117,639.44 and 47,006.28

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Solution

The fourth proportional to 85,245.36, 117,639.44 and 47,006.28 is: 64,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,245.36 : 117,639.44 = 47,006.28 : x
  2. Step 2: Convert to fraction form
    85,245.36/117,639.44 = 47,006.28/x
  3. Step 3: Cross multiply
    85,245.36x = 117,639.44 × 47,006.28
  4. Step 4: Simplify right side
    85,245.36x = 5,529,792,220.65
  5. Step 5: Solve for x
    x = 5,529,792,220.65/85,245.36
  6. Step 6: Final answer
    x = 64,869.13

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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.