Home / 78,091.36-116,864.88-63,887.20

Finding the Fourth Proportional to 78,091.36, 116,864.88 and 63,887.20

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Solution

The fourth proportional to 78,091.36, 116,864.88 and 63,887.20 is: 95,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,091.36 : 116,864.88 = 63,887.20 : x
  2. Step 2: Convert to fraction form
    78,091.36/116,864.88 = 63,887.20/x
  3. Step 3: Cross multiply
    78,091.36x = 116,864.88 × 63,887.20
  4. Step 4: Simplify right side
    78,091.36x = 7,466,169,961.54
  5. Step 5: Solve for x
    x = 7,466,169,961.54/78,091.36
  6. Step 6: Final answer
    x = 95,608.14

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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.