Home / 85,518.57-118,015.81-47,792.82

Finding the Fourth Proportional to 85,518.57, 118,015.81 and 47,792.82

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Solution

The fourth proportional to 85,518.57, 118,015.81 and 47,792.82 is: 65,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,518.57 : 118,015.81 = 47,792.82 : x
  2. Step 2: Convert to fraction form
    85,518.57/118,015.81 = 47,792.82/x
  3. Step 3: Cross multiply
    85,518.57x = 118,015.81 × 47,792.82
  4. Step 4: Simplify right side
    85,518.57x = 5,640,308,245.00
  5. Step 5: Solve for x
    x = 5,640,308,245.00/85,518.57
  6. Step 6: Final answer
    x = 65,954.19

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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.