Home / 82,688.05-123,875.99-48,853.11

Finding the Fourth Proportional to 82,688.05, 123,875.99 and 48,853.11

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Solution

The fourth proportional to 82,688.05, 123,875.99 and 48,853.11 is: 73,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,688.05 : 123,875.99 = 48,853.11 : x
  2. Step 2: Convert to fraction form
    82,688.05/123,875.99 = 48,853.11/x
  3. Step 3: Cross multiply
    82,688.05x = 123,875.99 × 48,853.11
  4. Step 4: Simplify right side
    82,688.05x = 6,051,727,023.43
  5. Step 5: Solve for x
    x = 6,051,727,023.43/82,688.05
  6. Step 6: Final answer
    x = 73,187.45

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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.