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Finding the Fourth Proportional to 90,527.66, 135,747.60 and 53,099.96

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Solution

The fourth proportional to 90,527.66, 135,747.60 and 53,099.96 is: 79,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,527.66 : 135,747.60 = 53,099.96 : x
  2. Step 2: Convert to fraction form
    90,527.66/135,747.60 = 53,099.96/x
  3. Step 3: Cross multiply
    90,527.66x = 135,747.60 × 53,099.96
  4. Step 4: Simplify right side
    90,527.66x = 7,208,192,130.10
  5. Step 5: Solve for x
    x = 7,208,192,130.10/90,527.66
  6. Step 6: Final answer
    x = 79,624.20

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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.