Home / 74,701.08-103,085.60-40,710.44

Finding the Fourth Proportional to 74,701.08, 103,085.60 and 40,710.44

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Solution

The fourth proportional to 74,701.08, 103,085.60 and 40,710.44 is: 56,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.08 : 103,085.60 = 40,710.44 : x
  2. Step 2: Convert to fraction form
    74,701.08/103,085.60 = 40,710.44/x
  3. Step 3: Cross multiply
    74,701.08x = 103,085.60 × 40,710.44
  4. Step 4: Simplify right side
    74,701.08x = 4,196,660,187.83
  5. Step 5: Solve for x
    x = 4,196,660,187.83/74,701.08
  6. Step 6: Final answer
    x = 56,179.38

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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.