Home / 84,890.96-117,148.68-47,164.40

Finding the Fourth Proportional to 84,890.96, 117,148.68 and 47,164.40

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Solution

The fourth proportional to 84,890.96, 117,148.68 and 47,164.40 is: 65,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,890.96 : 117,148.68 = 47,164.40 : x
  2. Step 2: Convert to fraction form
    84,890.96/117,148.68 = 47,164.40/x
  3. Step 3: Cross multiply
    84,890.96x = 117,148.68 × 47,164.40
  4. Step 4: Simplify right side
    84,890.96x = 5,525,247,202.99
  5. Step 5: Solve for x
    x = 5,525,247,202.99/84,890.96
  6. Step 6: Final answer
    x = 65,086.40

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1.5x scale

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.