Home / 83,109.10-124,639.35-29,794.90

Finding the Fourth Proportional to 83,109.10, 124,639.35 and 29,794.90

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Solution

The fourth proportional to 83,109.10, 124,639.35 and 29,794.90 is: 44,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,109.10 : 124,639.35 = 29,794.90 : x
  2. Step 2: Convert to fraction form
    83,109.10/124,639.35 = 29,794.90/x
  3. Step 3: Cross multiply
    83,109.10x = 124,639.35 × 29,794.90
  4. Step 4: Simplify right side
    83,109.10x = 3,713,616,969.32
  5. Step 5: Solve for x
    x = 3,713,616,969.32/83,109.10
  6. Step 6: Final answer
    x = 44,683.64

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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.