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Finding the Fourth Proportional to 86,744.64, 130,116.94 and 27,580.30

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Solution

The fourth proportional to 86,744.64, 130,116.94 and 27,580.30 is: 41,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,744.64 : 130,116.94 = 27,580.30 : x
  2. Step 2: Convert to fraction form
    86,744.64/130,116.94 = 27,580.30/x
  3. Step 3: Cross multiply
    86,744.64x = 130,116.94 × 27,580.30
  4. Step 4: Simplify right side
    86,744.64x = 3,588,664,240.28
  5. Step 5: Solve for x
    x = 3,588,664,240.28/86,744.64
  6. Step 6: Final answer
    x = 41,370.44

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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.