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Finding the Fourth Proportional to 87,364.36, 130,832.70 and 40,630.60

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Solution

The fourth proportional to 87,364.36, 130,832.70 and 40,630.60 is: 60,846.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,364.36 : 130,832.70 = 40,630.60 : x
  2. Step 2: Convert to fraction form
    87,364.36/130,832.70 = 40,630.60/x
  3. Step 3: Cross multiply
    87,364.36x = 130,832.70 × 40,630.60
  4. Step 4: Simplify right side
    87,364.36x = 5,315,811,100.62
  5. Step 5: Solve for x
    x = 5,315,811,100.62/87,364.36
  6. Step 6: Final answer
    x = 60,846.45

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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.