Home / 90,482.20-135,693.58-30,494.58

Finding the Fourth Proportional to 90,482.20, 135,693.58 and 30,494.58

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Solution

The fourth proportional to 90,482.20, 135,693.58 and 30,494.58 is: 45,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,482.20 : 135,693.58 = 30,494.58 : x
  2. Step 2: Convert to fraction form
    90,482.20/135,693.58 = 30,494.58/x
  3. Step 3: Cross multiply
    90,482.20x = 135,693.58 × 30,494.58
  4. Step 4: Simplify right side
    90,482.20x = 4,137,918,202.89
  5. Step 5: Solve for x
    x = 4,137,918,202.89/90,482.20
  6. Step 6: Final answer
    x = 45,731.85

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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.