Home / 90,771.12-136,184.31-46,429.02

Finding the Fourth Proportional to 90,771.12, 136,184.31 and 46,429.02

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Solution

The fourth proportional to 90,771.12, 136,184.31 and 46,429.02 is: 69,657.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,771.12 : 136,184.31 = 46,429.02 : x
  2. Step 2: Convert to fraction form
    90,771.12/136,184.31 = 46,429.02/x
  3. Step 3: Cross multiply
    90,771.12x = 136,184.31 × 46,429.02
  4. Step 4: Simplify right side
    90,771.12x = 6,322,904,052.68
  5. Step 5: Solve for x
    x = 6,322,904,052.68/90,771.12
  6. Step 6: Final answer
    x = 69,657.66

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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.