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Finding the Fourth Proportional to 86,114.88, 118,840.64 and 48,388.16

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Solution

The fourth proportional to 86,114.88, 118,840.64 and 48,388.16 is: 66,776.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,114.88 : 118,840.64 = 48,388.16 : x
  2. Step 2: Convert to fraction form
    86,114.88/118,840.64 = 48,388.16/x
  3. Step 3: Cross multiply
    86,114.88x = 118,840.64 × 48,388.16
  4. Step 4: Simplify right side
    86,114.88x = 5,750,479,902.82
  5. Step 5: Solve for x
    x = 5,750,479,902.82/86,114.88
  6. Step 6: Final answer
    x = 66,776.84

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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.