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Finding the Fourth Proportional to 90,654.80, 125,095.79 and 50,367.83

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Solution

The fourth proportional to 90,654.80, 125,095.79 and 50,367.83 is: 69,503.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,654.80 : 125,095.79 = 50,367.83 : x
  2. Step 2: Convert to fraction form
    90,654.80/125,095.79 = 50,367.83/x
  3. Step 3: Cross multiply
    90,654.80x = 125,095.79 × 50,367.83
  4. Step 4: Simplify right side
    90,654.80x = 6,300,802,984.88
  5. Step 5: Solve for x
    x = 6,300,802,984.88/90,654.80
  6. Step 6: Final answer
    x = 69,503.25

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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.