Home / 88,396.43-121,983.81-48,109.30

Finding the Fourth Proportional to 88,396.43, 121,983.81 and 48,109.30

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Solution

The fourth proportional to 88,396.43, 121,983.81 and 48,109.30 is: 66,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,396.43 : 121,983.81 = 48,109.30 : x
  2. Step 2: Convert to fraction form
    88,396.43/121,983.81 = 48,109.30/x
  3. Step 3: Cross multiply
    88,396.43x = 121,983.81 × 48,109.30
  4. Step 4: Simplify right side
    88,396.43x = 5,868,555,710.43
  5. Step 5: Solve for x
    x = 5,868,555,710.43/88,396.43
  6. Step 6: Final answer
    x = 66,389.06

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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.