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Finding the Fourth Proportional to 90,617, 125,051.46 and 50,873

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Solution

The fourth proportional to 90,617, 125,051.46 and 50,873 is: 70,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,617 : 125,051.46 = 50,873 : x
  2. Step 2: Convert to fraction form
    90,617/125,051.46 = 50,873/x
  3. Step 3: Cross multiply
    90,617x = 125,051.46 × 50,873
  4. Step 4: Simplify right side
    90,617x = 6,361,742,924.58
  5. Step 5: Solve for x
    x = 6,361,742,924.58/90,617
  6. Step 6: Final answer
    x = 70,204.74

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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.