Home / 85,072.36-117,397.86-47,345.80

Finding the Fourth Proportional to 85,072.36, 117,397.86 and 47,345.80

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Solution

The fourth proportional to 85,072.36, 117,397.86 and 47,345.80 is: 65,336.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.36 : 117,397.86 = 47,345.80 : x
  2. Step 2: Convert to fraction form
    85,072.36/117,397.86 = 47,345.80/x
  3. Step 3: Cross multiply
    85,072.36x = 117,397.86 × 47,345.80
  4. Step 4: Simplify right side
    85,072.36x = 5,558,295,599.99
  5. Step 5: Solve for x
    x = 5,558,295,599.99/85,072.36
  6. Step 6: Final answer
    x = 65,336.09

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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.