Home / 90,515.88-135,777.47-43,106.58

Finding the Fourth Proportional to 90,515.88, 135,777.47 and 43,106.58

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Solution

The fourth proportional to 90,515.88, 135,777.47 and 43,106.58 is: 64,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,515.88 : 135,777.47 = 43,106.58 : x
  2. Step 2: Convert to fraction form
    90,515.88/135,777.47 = 43,106.58/x
  3. Step 3: Cross multiply
    90,515.88x = 135,777.47 × 43,106.58
  4. Step 4: Simplify right side
    90,515.88x = 5,852,902,157.22
  5. Step 5: Solve for x
    x = 5,852,902,157.22/90,515.88
  6. Step 6: Final answer
    x = 64,661.61

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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.