Home / 78,466.14-117,699.93-55,881.54

Finding the Fourth Proportional to 78,466.14, 117,699.93 and 55,881.54

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Solution

The fourth proportional to 78,466.14, 117,699.93 and 55,881.54 is: 83,822.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,466.14 : 117,699.93 = 55,881.54 : x
  2. Step 2: Convert to fraction form
    78,466.14/117,699.93 = 55,881.54/x
  3. Step 3: Cross multiply
    78,466.14x = 117,699.93 × 55,881.54
  4. Step 4: Simplify right side
    78,466.14x = 6,577,253,346.29
  5. Step 5: Solve for x
    x = 6,577,253,346.29/78,466.14
  6. Step 6: Final answer
    x = 83,822.82

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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.