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Finding the Fourth Proportional to 50,781.79, 70,079.75 and 29,560.60

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Solution

The fourth proportional to 50,781.79, 70,079.75 and 29,560.60 is: 40,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,781.79 : 70,079.75 = 29,560.60 : x
  2. Step 2: Convert to fraction form
    50,781.79/70,079.75 = 29,560.60/x
  3. Step 3: Cross multiply
    50,781.79x = 70,079.75 × 29,560.60
  4. Step 4: Simplify right side
    50,781.79x = 2,071,599,457.85
  5. Step 5: Solve for x
    x = 2,071,599,457.85/50,781.79
  6. Step 6: Final answer
    x = 40,794.14

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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.