Home / 75,321.32-103,943.96-41,787.32

Finding the Fourth Proportional to 75,321.32, 103,943.96 and 41,787.32

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Solution

The fourth proportional to 75,321.32, 103,943.96 and 41,787.32 is: 57,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,321.32 : 103,943.96 = 41,787.32 : x
  2. Step 2: Convert to fraction form
    75,321.32/103,943.96 = 41,787.32/x
  3. Step 3: Cross multiply
    75,321.32x = 103,943.96 × 41,787.32
  4. Step 4: Simplify right side
    75,321.32x = 4,343,539,518.59
  5. Step 5: Solve for x
    x = 4,343,539,518.59/75,321.32
  6. Step 6: Final answer
    x = 57,666.80

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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.