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Finding the Fourth Proportional to 50,405.77, 75,609.40 and 12,965.01

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Solution

The fourth proportional to 50,405.77, 75,609.40 and 12,965.01 is: 19,447.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,405.77 : 75,609.40 = 12,965.01 : x
  2. Step 2: Convert to fraction form
    50,405.77/75,609.40 = 12,965.01/x
  3. Step 3: Cross multiply
    50,405.77x = 75,609.40 × 12,965.01
  4. Step 4: Simplify right side
    50,405.77x = 980,276,335.46
  5. Step 5: Solve for x
    x = 980,276,335.46/50,405.77
  6. Step 6: Final answer
    x = 19,447.70

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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.