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Finding the Fourth Proportional to 94,520, 130,433.40 and 51,499.64

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Solution

The fourth proportional to 94,520, 130,433.40 and 51,499.64 is: 71,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,520 : 130,433.40 = 51,499.64 : x
  2. Step 2: Convert to fraction form
    94,520/130,433.40 = 51,499.64/x
  3. Step 3: Cross multiply
    94,520x = 130,433.40 × 51,499.64
  4. Step 4: Simplify right side
    94,520x = 6,717,273,143.98
  5. Step 5: Solve for x
    x = 6,717,273,143.98/94,520
  6. Step 6: Final answer
    x = 71,067.21

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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.