Home / 77,372.35-116,054.64-21,211.54

Finding the Fourth Proportional to 77,372.35, 116,054.64 and 21,211.54

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Solution

The fourth proportional to 77,372.35, 116,054.64 and 21,211.54 is: 31,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,372.35 : 116,054.64 = 21,211.54 : x
  2. Step 2: Convert to fraction form
    77,372.35/116,054.64 = 21,211.54/x
  3. Step 3: Cross multiply
    77,372.35x = 116,054.64 × 21,211.54
  4. Step 4: Simplify right side
    77,372.35x = 2,461,697,348.41
  5. Step 5: Solve for x
    x = 2,461,697,348.41/77,372.35
  6. Step 6: Final answer
    x = 31,816.24

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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.