Home / 85,440.76-117,908.16-47,715.04

Finding the Fourth Proportional to 85,440.76, 117,908.16 and 47,715.04

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Solution

The fourth proportional to 85,440.76, 117,908.16 and 47,715.04 is: 65,846.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,440.76 : 117,908.16 = 47,715.04 : x
  2. Step 2: Convert to fraction form
    85,440.76/117,908.16 = 47,715.04/x
  3. Step 3: Cross multiply
    85,440.76x = 117,908.16 × 47,715.04
  4. Step 4: Simplify right side
    85,440.76x = 5,625,992,570.73
  5. Step 5: Solve for x
    x = 5,625,992,570.73/85,440.76
  6. Step 6: Final answer
    x = 65,846.71

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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.