Home / 85,641.36-118,208.81-49,838.28

Finding the Fourth Proportional to 85,641.36, 118,208.81 and 49,838.28

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Solution

The fourth proportional to 85,641.36, 118,208.81 and 49,838.28 is: 68,790.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,641.36 : 118,208.81 = 49,838.28 : x
  2. Step 2: Convert to fraction form
    85,641.36/118,208.81 = 49,838.28/x
  3. Step 3: Cross multiply
    85,641.36x = 118,208.81 × 49,838.28
  4. Step 4: Simplify right side
    85,641.36x = 5,891,323,771.25
  5. Step 5: Solve for x
    x = 5,891,323,771.25/85,641.36
  6. Step 6: Final answer
    x = 68,790.64

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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.