Home / 81,334.40-112,166.64-68,715.41

Finding the Fourth Proportional to 81,334.40, 112,166.64 and 68,715.41

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Solution

The fourth proportional to 81,334.40, 112,166.64 and 68,715.41 is: 94,764.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,334.40 : 112,166.64 = 68,715.41 : x
  2. Step 2: Convert to fraction form
    81,334.40/112,166.64 = 68,715.41/x
  3. Step 3: Cross multiply
    81,334.40x = 112,166.64 × 68,715.41
  4. Step 4: Simplify right side
    81,334.40x = 7,707,576,095.09
  5. Step 5: Solve for x
    x = 7,707,576,095.09/81,334.40
  6. Step 6: Final answer
    x = 94,764.04

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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.