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Finding the Fourth Proportional to 91,326.83, 126,069.83 and 55,528.28

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Solution

The fourth proportional to 91,326.83, 126,069.83 and 55,528.28 is: 76,652.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,326.83 : 126,069.83 = 55,528.28 : x
  2. Step 2: Convert to fraction form
    91,326.83/126,069.83 = 55,528.28/x
  3. Step 3: Cross multiply
    91,326.83x = 126,069.83 × 55,528.28
  4. Step 4: Simplify right side
    91,326.83x = 7,000,440,819.79
  5. Step 5: Solve for x
    x = 7,000,440,819.79/91,326.83
  6. Step 6: Final answer
    x = 76,652.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.