Home / 49,931.14-68,905.43-28,419.83

Finding the Fourth Proportional to 49,931.14, 68,905.43 and 28,419.83

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Solution

The fourth proportional to 49,931.14, 68,905.43 and 28,419.83 is: 39,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,931.14 : 68,905.43 = 28,419.83 : x
  2. Step 2: Convert to fraction form
    49,931.14/68,905.43 = 28,419.83/x
  3. Step 3: Cross multiply
    49,931.14x = 68,905.43 × 28,419.83
  4. Step 4: Simplify right side
    49,931.14x = 1,958,280,606.68
  5. Step 5: Solve for x
    x = 1,958,280,606.68/49,931.14
  6. Step 6: Final answer
    x = 39,219.63

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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.