Home / 85,441.20-117,910.62-47,715.48

Finding the Fourth Proportional to 85,441.20, 117,910.62 and 47,715.48

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Solution

The fourth proportional to 85,441.20, 117,910.62 and 47,715.48 is: 65,848.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,441.20 : 117,910.62 = 47,715.48 : x
  2. Step 2: Convert to fraction form
    85,441.20/117,910.62 = 47,715.48/x
  3. Step 3: Cross multiply
    85,441.20x = 117,910.62 × 47,715.48
  4. Step 4: Simplify right side
    85,441.20x = 5,626,161,830.40
  5. Step 5: Solve for x
    x = 5,626,161,830.40/85,441.20
  6. Step 6: Final answer
    x = 65,848.35

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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.