Home / 75,583.18-113,359.59-71,836.30

Finding the Fourth Proportional to 75,583.18, 113,359.59 and 71,836.30

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Solution

The fourth proportional to 75,583.18, 113,359.59 and 71,836.30 is: 107,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,583.18 : 113,359.59 = 71,836.30 : x
  2. Step 2: Convert to fraction form
    75,583.18/113,359.59 = 71,836.30/x
  3. Step 3: Cross multiply
    75,583.18x = 113,359.59 × 71,836.30
  4. Step 4: Simplify right side
    75,583.18x = 8,143,333,515.12
  5. Step 5: Solve for x
    x = 8,143,333,515.12/75,583.18
  6. Step 6: Final answer
    x = 107,740.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.