Home / 68,509.06-94,541.79-40,209.28

Finding the Fourth Proportional to 68,509.06, 94,541.79 and 40,209.28

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Solution

The fourth proportional to 68,509.06, 94,541.79 and 40,209.28 is: 55,488.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,509.06 : 94,541.79 = 40,209.28 : x
  2. Step 2: Convert to fraction form
    68,509.06/94,541.79 = 40,209.28/x
  3. Step 3: Cross multiply
    68,509.06x = 94,541.79 × 40,209.28
  4. Step 4: Simplify right side
    68,509.06x = 3,801,457,305.81
  5. Step 5: Solve for x
    x = 3,801,457,305.81/68,509.06
  6. Step 6: Final answer
    x = 55,488.39

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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.