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Finding the Fourth Proportional to 71,015.64, 106,523.16 and 28,895.08

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Solution

The fourth proportional to 71,015.64, 106,523.16 and 28,895.08 is: 43,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,015.64 : 106,523.16 = 28,895.08 : x
  2. Step 2: Convert to fraction form
    71,015.64/106,523.16 = 28,895.08/x
  3. Step 3: Cross multiply
    71,015.64x = 106,523.16 × 28,895.08
  4. Step 4: Simplify right side
    71,015.64x = 3,077,995,230.05
  5. Step 5: Solve for x
    x = 3,077,995,230.05/71,015.64
  6. Step 6: Final answer
    x = 43,342.50

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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.