Home / 85,396.45-117,857.09-71,030.94

Finding the Fourth Proportional to 85,396.45, 117,857.09 and 71,030.94

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Solution

The fourth proportional to 85,396.45, 117,857.09 and 71,030.94 is: 98,031.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,396.45 : 117,857.09 = 71,030.94 : x
  2. Step 2: Convert to fraction form
    85,396.45/117,857.09 = 71,030.94/x
  3. Step 3: Cross multiply
    85,396.45x = 117,857.09 × 71,030.94
  4. Step 4: Simplify right side
    85,396.45x = 8,371,499,888.36
  5. Step 5: Solve for x
    x = 8,371,499,888.36/85,396.45
  6. Step 6: Final answer
    x = 98,031.01

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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.