Home / 78,896.89-118,346.38-26,306.39

Finding the Fourth Proportional to 78,896.89, 118,346.38 and 26,306.39

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Solution

The fourth proportional to 78,896.89, 118,346.38 and 26,306.39 is: 39,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,896.89 : 118,346.38 = 26,306.39 : x
  2. Step 2: Convert to fraction form
    78,896.89/118,346.38 = 26,306.39/x
  3. Step 3: Cross multiply
    78,896.89x = 118,346.38 × 26,306.39
  4. Step 4: Simplify right side
    78,896.89x = 3,113,266,027.37
  5. Step 5: Solve for x
    x = 3,113,266,027.37/78,896.89
  6. Step 6: Final answer
    x = 39,459.93

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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.