Home / 81,968.74-113,118.77-45,672.64

Finding the Fourth Proportional to 81,968.74, 113,118.77 and 45,672.64

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Solution

The fourth proportional to 81,968.74, 113,118.77 and 45,672.64 is: 63,029.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,968.74 : 113,118.77 = 45,672.64 : x
  2. Step 2: Convert to fraction form
    81,968.74/113,118.77 = 45,672.64/x
  3. Step 3: Cross multiply
    81,968.74x = 113,118.77 × 45,672.64
  4. Step 4: Simplify right side
    81,968.74x = 5,166,432,690.84
  5. Step 5: Solve for x
    x = 5,166,432,690.84/81,968.74
  6. Step 6: Final answer
    x = 63,029.31

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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.