Home / 86,157.36-118,879.70-50,340.45

Finding the Fourth Proportional to 86,157.36, 118,879.70 and 50,340.45

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Solution

The fourth proportional to 86,157.36, 118,879.70 and 50,340.45 is: 69,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,157.36 : 118,879.70 = 50,340.45 : x
  2. Step 2: Convert to fraction form
    86,157.36/118,879.70 = 50,340.45/x
  3. Step 3: Cross multiply
    86,157.36x = 118,879.70 × 50,340.45
  4. Step 4: Simplify right side
    86,157.36x = 5,984,457,342.16
  5. Step 5: Solve for x
    x = 5,984,457,342.16/86,157.36
  6. Step 6: Final answer
    x = 69,459.62

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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.