Home / 72,311.34-108,633.51-51,303.54

Finding the Fourth Proportional to 72,311.34, 108,633.51 and 51,303.54

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Solution

The fourth proportional to 72,311.34, 108,633.51 and 51,303.54 is: 77,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,311.34 : 108,633.51 = 51,303.54 : x
  2. Step 2: Convert to fraction form
    72,311.34/108,633.51 = 51,303.54/x
  3. Step 3: Cross multiply
    72,311.34x = 108,633.51 × 51,303.54
  4. Step 4: Simplify right side
    72,311.34x = 5,573,283,625.63
  5. Step 5: Solve for x
    x = 5,573,283,625.63/72,311.34
  6. Step 6: Final answer
    x = 77,073.44

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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.