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Finding the Fourth Proportional to 50,130, 69,179.40 and 29,987.73

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Solution

The fourth proportional to 50,130, 69,179.40 and 29,987.73 is: 41,383.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,130 : 69,179.40 = 29,987.73 : x
  2. Step 2: Convert to fraction form
    50,130/69,179.40 = 29,987.73/x
  3. Step 3: Cross multiply
    50,130x = 69,179.40 × 29,987.73
  4. Step 4: Simplify right side
    50,130x = 2,074,533,168.76
  5. Step 5: Solve for x
    x = 2,074,533,168.76/50,130
  6. Step 6: Final answer
    x = 41,383.07

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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.