Home / 78,817.39-108,767.99-50,523.08

Finding the Fourth Proportional to 78,817.39, 108,767.99 and 50,523.08

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Solution

The fourth proportional to 78,817.39, 108,767.99 and 50,523.08 is: 69,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,817.39 : 108,767.99 = 50,523.08 : x
  2. Step 2: Convert to fraction form
    78,817.39/108,767.99 = 50,523.08/x
  3. Step 3: Cross multiply
    78,817.39x = 108,767.99 × 50,523.08
  4. Step 4: Simplify right side
    78,817.39x = 5,495,293,442.68
  5. Step 5: Solve for x
    x = 5,495,293,442.68/78,817.39
  6. Step 6: Final answer
    x = 69,721.84

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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.