Home / 68,928.60-103,412.10-33,869.40

Finding the Fourth Proportional to 68,928.60, 103,412.10 and 33,869.40

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Solution

The fourth proportional to 68,928.60, 103,412.10 and 33,869.40 is: 50,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,928.60 : 103,412.10 = 33,869.40 : x
  2. Step 2: Convert to fraction form
    68,928.60/103,412.10 = 33,869.40/x
  3. Step 3: Cross multiply
    68,928.60x = 103,412.10 × 33,869.40
  4. Step 4: Simplify right side
    68,928.60x = 3,502,505,779.74
  5. Step 5: Solve for x
    x = 3,502,505,779.74/68,928.60
  6. Step 6: Final answer
    x = 50,813.53

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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.