Home / 74,522.39-111,783.57-19,118.39

Finding the Fourth Proportional to 74,522.39, 111,783.57 and 19,118.39

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Solution

The fourth proportional to 74,522.39, 111,783.57 and 19,118.39 is: 28,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,522.39 : 111,783.57 = 19,118.39 : x
  2. Step 2: Convert to fraction form
    74,522.39/111,783.57 = 19,118.39/x
  3. Step 3: Cross multiply
    74,522.39x = 111,783.57 × 19,118.39
  4. Step 4: Simplify right side
    74,522.39x = 2,137,121,886.85
  5. Step 5: Solve for x
    x = 2,137,121,886.85/74,522.39
  6. Step 6: Final answer
    x = 28,677.58

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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.