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Finding the Fourth Proportional to 102,879.52, 154,290.64 and 36,311.04

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Solution

The fourth proportional to 102,879.52, 154,290.64 and 36,311.04 is: 54,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,879.52 : 154,290.64 = 36,311.04 : x
  2. Step 2: Convert to fraction form
    102,879.52/154,290.64 = 36,311.04/x
  3. Step 3: Cross multiply
    102,879.52x = 154,290.64 × 36,311.04
  4. Step 4: Simplify right side
    102,879.52x = 5,602,453,600.67
  5. Step 5: Solve for x
    x = 5,602,453,600.67/102,879.52
  6. Step 6: Final answer
    x = 54,456.45

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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.