Home / 78,090.36-116,863.38-63,886.20

Finding the Fourth Proportional to 78,090.36, 116,863.38 and 63,886.20

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Solution

The fourth proportional to 78,090.36, 116,863.38 and 63,886.20 is: 95,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,090.36 : 116,863.38 = 63,886.20 : x
  2. Step 2: Convert to fraction form
    78,090.36/116,863.38 = 63,886.20/x
  3. Step 3: Cross multiply
    78,090.36x = 116,863.38 × 63,886.20
  4. Step 4: Simplify right side
    78,090.36x = 7,465,957,267.36
  5. Step 5: Solve for x
    x = 7,465,957,267.36/78,090.36
  6. Step 6: Final answer
    x = 95,606.64

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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.