Home / 72,349.64-108,690.78-51,051.38

Finding the Fourth Proportional to 72,349.64, 108,690.78 and 51,051.38

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Solution

The fourth proportional to 72,349.64, 108,690.78 and 51,051.38 is: 76,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,349.64 : 108,690.78 = 51,051.38 : x
  2. Step 2: Convert to fraction form
    72,349.64/108,690.78 = 51,051.38/x
  3. Step 3: Cross multiply
    72,349.64x = 108,690.78 × 51,051.38
  4. Step 4: Simplify right side
    72,349.64x = 5,548,814,312.28
  5. Step 5: Solve for x
    x = 5,548,814,312.28/72,349.64
  6. Step 6: Final answer
    x = 76,694.43

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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.