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Finding the Fourth Proportional to 86,999.42, 130,477.82 and 27,822.84

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Solution

The fourth proportional to 86,999.42, 130,477.82 and 27,822.84 is: 41,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,999.42 : 130,477.82 = 27,822.84 : x
  2. Step 2: Convert to fraction form
    86,999.42/130,477.82 = 27,822.84/x
  3. Step 3: Cross multiply
    86,999.42x = 130,477.82 × 27,822.84
  4. Step 4: Simplify right side
    86,999.42x = 3,630,263,509.41
  5. Step 5: Solve for x
    x = 3,630,263,509.41/86,999.42
  6. Step 6: Final answer
    x = 41,727.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.