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Finding the Fourth Proportional to 76,895.70, 115,343.55 and 73,266.90

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Solution

The fourth proportional to 76,895.70, 115,343.55 and 73,266.90 is: 109,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,895.70 : 115,343.55 = 73,266.90 : x
  2. Step 2: Convert to fraction form
    76,895.70/115,343.55 = 73,266.90/x
  3. Step 3: Cross multiply
    76,895.70x = 115,343.55 × 73,266.90
  4. Step 4: Simplify right side
    76,895.70x = 8,450,864,343.50
  5. Step 5: Solve for x
    x = 8,450,864,343.50/76,895.70
  6. Step 6: Final answer
    x = 109,900.35

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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.