Home / 91,310.69-136,956.29-43,267.70

Finding the Fourth Proportional to 91,310.69, 136,956.29 and 43,267.70

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Solution

The fourth proportional to 91,310.69, 136,956.29 and 43,267.70 is: 64,896.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,310.69 : 136,956.29 = 43,267.70 : x
  2. Step 2: Convert to fraction form
    91,310.69/136,956.29 = 43,267.70/x
  3. Step 3: Cross multiply
    91,310.69x = 136,956.29 × 43,267.70
  4. Step 4: Simplify right side
    91,310.69x = 5,925,783,794.89
  5. Step 5: Solve for x
    x = 5,925,783,794.89/91,310.69
  6. Step 6: Final answer
    x = 64,896.93

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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.