Home / 49,770.68-68,678.55-30,647.39

Finding the Fourth Proportional to 49,770.68, 68,678.55 and 30,647.39

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Solution

The fourth proportional to 49,770.68, 68,678.55 and 30,647.39 is: 42,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,770.68 : 68,678.55 = 30,647.39 : x
  2. Step 2: Convert to fraction form
    49,770.68/68,678.55 = 30,647.39/x
  3. Step 3: Cross multiply
    49,770.68x = 68,678.55 × 30,647.39
  4. Step 4: Simplify right side
    49,770.68x = 2,104,817,963.09
  5. Step 5: Solve for x
    x = 2,104,817,963.09/49,770.68
  6. Step 6: Final answer
    x = 42,290.32

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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.