Home / 90,272.36-135,397.58-45,930.93

Finding the Fourth Proportional to 90,272.36, 135,397.58 and 45,930.93

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Solution

The fourth proportional to 90,272.36, 135,397.58 and 45,930.93 is: 68,890.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,272.36 : 135,397.58 = 45,930.93 : x
  2. Step 2: Convert to fraction form
    90,272.36/135,397.58 = 45,930.93/x
  3. Step 3: Cross multiply
    90,272.36x = 135,397.58 × 45,930.93
  4. Step 4: Simplify right side
    90,272.36x = 6,218,936,769.15
  5. Step 5: Solve for x
    x = 6,218,936,769.15/90,272.36
  6. Step 6: Final answer
    x = 68,890.82

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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.