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Finding the Fourth Proportional to 30,263.66, 45,395.48 and 8,077.11

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Solution

The fourth proportional to 30,263.66, 45,395.48 and 8,077.11 is: 12,115.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,263.66 : 45,395.48 = 8,077.11 : x
  2. Step 2: Convert to fraction form
    30,263.66/45,395.48 = 8,077.11/x
  3. Step 3: Cross multiply
    30,263.66x = 45,395.48 × 8,077.11
  4. Step 4: Simplify right side
    30,263.66x = 366,664,245.08
  5. Step 5: Solve for x
    x = 366,664,245.08/30,263.66
  6. Step 6: Final answer
    x = 12,115.66

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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.