Home / 85,661.19-118,208.73-47,418.48

Finding the Fourth Proportional to 85,661.19, 118,208.73 and 47,418.48

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Solution

The fourth proportional to 85,661.19, 118,208.73 and 47,418.48 is: 65,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,661.19 : 118,208.73 = 47,418.48 : x
  2. Step 2: Convert to fraction form
    85,661.19/118,208.73 = 47,418.48/x
  3. Step 3: Cross multiply
    85,661.19x = 118,208.73 × 47,418.48
  4. Step 4: Simplify right side
    85,661.19x = 5,605,278,299.33
  5. Step 5: Solve for x
    x = 5,605,278,299.33/85,661.19
  6. Step 6: Final answer
    x = 65,435.45

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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.