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Finding the Fourth Proportional to 50,765.08, 70,058.10 and 28,409.08

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Solution

The fourth proportional to 50,765.08, 70,058.10 and 28,409.08 is: 39,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,765.08 : 70,058.10 = 28,409.08 : x
  2. Step 2: Convert to fraction form
    50,765.08/70,058.10 = 28,409.08/x
  3. Step 3: Cross multiply
    50,765.08x = 70,058.10 × 28,409.08
  4. Step 4: Simplify right side
    50,765.08x = 1,990,286,167.55
  5. Step 5: Solve for x
    x = 1,990,286,167.55/50,765.08
  6. Step 6: Final answer
    x = 39,205.81

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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.