Home / 78,385.26-108,178.83-44,395.11

Finding the Fourth Proportional to 78,385.26, 108,178.83 and 44,395.11

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Solution

The fourth proportional to 78,385.26, 108,178.83 and 44,395.11 is: 61,269.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,385.26 : 108,178.83 = 44,395.11 : x
  2. Step 2: Convert to fraction form
    78,385.26/108,178.83 = 44,395.11/x
  3. Step 3: Cross multiply
    78,385.26x = 108,178.83 × 44,395.11
  4. Step 4: Simplify right side
    78,385.26x = 4,802,611,057.52
  5. Step 5: Solve for x
    x = 4,802,611,057.52/78,385.26
  6. Step 6: Final answer
    x = 61,269.31

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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.