Home / 68,511.04-94,543.68-40,219.36

Finding the Fourth Proportional to 68,511.04, 94,543.68 and 40,219.36

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Solution

The fourth proportional to 68,511.04, 94,543.68 and 40,219.36 is: 55,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,511.04 : 94,543.68 = 40,219.36 : x
  2. Step 2: Convert to fraction form
    68,511.04/94,543.68 = 40,219.36/x
  3. Step 3: Cross multiply
    68,511.04x = 94,543.68 × 40,219.36
  4. Step 4: Simplify right side
    68,511.04x = 3,802,486,301.64
  5. Step 5: Solve for x
    x = 3,802,486,301.64/68,511.04
  6. Step 6: Final answer
    x = 55,501.80

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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.