Home / 85,306.45-117,722.08-47,066.30

Finding the Fourth Proportional to 85,306.45, 117,722.08 and 47,066.30

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Solution

The fourth proportional to 85,306.45, 117,722.08 and 47,066.30 is: 64,951.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,306.45 : 117,722.08 = 47,066.30 : x
  2. Step 2: Convert to fraction form
    85,306.45/117,722.08 = 47,066.30/x
  3. Step 3: Cross multiply
    85,306.45x = 117,722.08 × 47,066.30
  4. Step 4: Simplify right side
    85,306.45x = 5,540,742,910.54
  5. Step 5: Solve for x
    x = 5,540,742,910.54/85,306.45
  6. Step 6: Final answer
    x = 64,951.05

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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.