Home / 85,214.10-117,808.04-63,956.46

Finding the Fourth Proportional to 85,214.10, 117,808.04 and 63,956.46

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Solution

The fourth proportional to 85,214.10, 117,808.04 and 63,956.46 is: 88,419.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,214.10 : 117,808.04 = 63,956.46 : x
  2. Step 2: Convert to fraction form
    85,214.10/117,808.04 = 63,956.46/x
  3. Step 3: Cross multiply
    85,214.10x = 117,808.04 × 63,956.46
  4. Step 4: Simplify right side
    85,214.10x = 7,534,585,197.94
  5. Step 5: Solve for x
    x = 7,534,585,197.94/85,214.10
  6. Step 6: Final answer
    x = 88,419.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.