Home / 68,109.04-101,519.70-64,781.68

Finding the Fourth Proportional to 68,109.04, 101,519.70 and 64,781.68

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Solution

The fourth proportional to 68,109.04, 101,519.70 and 64,781.68 is: 96,560.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,109.04 : 101,519.70 = 64,781.68 : x
  2. Step 2: Convert to fraction form
    68,109.04/101,519.70 = 64,781.68/x
  3. Step 3: Cross multiply
    68,109.04x = 101,519.70 × 64,781.68
  4. Step 4: Simplify right side
    68,109.04x = 6,576,616,719.10
  5. Step 5: Solve for x
    x = 6,576,616,719.10/68,109.04
  6. Step 6: Final answer
    x = 96,560.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.