Home / 85,673.36-118,224.60-47,940.32

Finding the Fourth Proportional to 85,673.36, 118,224.60 and 47,940.32

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Solution

The fourth proportional to 85,673.36, 118,224.60 and 47,940.32 is: 66,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,673.36 : 118,224.60 = 47,940.32 : x
  2. Step 2: Convert to fraction form
    85,673.36/118,224.60 = 47,940.32/x
  3. Step 3: Cross multiply
    85,673.36x = 118,224.60 × 47,940.32
  4. Step 4: Simplify right side
    85,673.36x = 5,667,725,155.87
  5. Step 5: Solve for x
    x = 5,667,725,155.87/85,673.36
  6. Step 6: Final answer
    x = 66,155.05

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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.