Home / 78,268.08-117,420.03-33,902.22

Finding the Fourth Proportional to 78,268.08, 117,420.03 and 33,902.22

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Solution

The fourth proportional to 78,268.08, 117,420.03 and 33,902.22 is: 50,861.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,268.08 : 117,420.03 = 33,902.22 : x
  2. Step 2: Convert to fraction form
    78,268.08/117,420.03 = 33,902.22/x
  3. Step 3: Cross multiply
    78,268.08x = 117,420.03 × 33,902.22
  4. Step 4: Simplify right side
    78,268.08x = 3,980,799,689.47
  5. Step 5: Solve for x
    x = 3,980,799,689.47/78,268.08
  6. Step 6: Final answer
    x = 50,861.09

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1.5x scale

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.