Home / 68,815.56-94,966.56-38,607.60

Finding the Fourth Proportional to 68,815.56, 94,966.56 and 38,607.60

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Solution

The fourth proportional to 68,815.56, 94,966.56 and 38,607.60 is: 53,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,815.56 : 94,966.56 = 38,607.60 : x
  2. Step 2: Convert to fraction form
    68,815.56/94,966.56 = 38,607.60/x
  3. Step 3: Cross multiply
    68,815.56x = 94,966.56 × 38,607.60
  4. Step 4: Simplify right side
    68,815.56x = 3,666,430,961.86
  5. Step 5: Solve for x
    x = 3,666,430,961.86/68,815.56
  6. Step 6: Final answer
    x = 53,279.10

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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.