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Finding the Fourth Proportional to 90,597.66, 135,836.52 and 43,220.07

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Solution

The fourth proportional to 90,597.66, 135,836.52 and 43,220.07 is: 64,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,597.66 : 135,836.52 = 43,220.07 : x
  2. Step 2: Convert to fraction form
    90,597.66/135,836.52 = 43,220.07/x
  3. Step 3: Cross multiply
    90,597.66x = 135,836.52 × 43,220.07
  4. Step 4: Simplify right side
    90,597.66x = 5,870,863,902.96
  5. Step 5: Solve for x
    x = 5,870,863,902.96/90,597.66
  6. Step 6: Final answer
    x = 64,801.50

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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.