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Finding the Fourth Proportional to 85,847.84, 128,752.08 and 23,523.20

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Solution

The fourth proportional to 85,847.84, 128,752.08 and 23,523.20 is: 35,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.84 : 128,752.08 = 23,523.20 : x
  2. Step 2: Convert to fraction form
    85,847.84/128,752.08 = 23,523.20/x
  3. Step 3: Cross multiply
    85,847.84x = 128,752.08 × 23,523.20
  4. Step 4: Simplify right side
    85,847.84x = 3,028,660,928.26
  5. Step 5: Solve for x
    x = 3,028,660,928.26/85,847.84
  6. Step 6: Final answer
    x = 35,279.41

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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.