Home / 86,035.26-118,725.84-48,309.78

Finding the Fourth Proportional to 86,035.26, 118,725.84 and 48,309.78

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Solution

The fourth proportional to 86,035.26, 118,725.84 and 48,309.78 is: 66,665.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,035.26 : 118,725.84 = 48,309.78 : x
  2. Step 2: Convert to fraction form
    86,035.26/118,725.84 = 48,309.78/x
  3. Step 3: Cross multiply
    86,035.26x = 118,725.84 × 48,309.78
  4. Step 4: Simplify right side
    86,035.26x = 5,735,619,210.72
  5. Step 5: Solve for x
    x = 5,735,619,210.72/86,035.26
  6. Step 6: Final answer
    x = 66,665.91

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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.