Home / 77,346.56-116,019.94-21,187.16

Finding the Fourth Proportional to 77,346.56, 116,019.94 and 21,187.16

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Solution

The fourth proportional to 77,346.56, 116,019.94 and 21,187.16 is: 31,780.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,346.56 : 116,019.94 = 21,187.16 : x
  2. Step 2: Convert to fraction form
    77,346.56/116,019.94 = 21,187.16/x
  3. Step 3: Cross multiply
    77,346.56x = 116,019.94 × 21,187.16
  4. Step 4: Simplify right side
    77,346.56x = 2,458,132,383.89
  5. Step 5: Solve for x
    x = 2,458,132,383.89/77,346.56
  6. Step 6: Final answer
    x = 31,780.76

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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.