Home / 76,832.32-106,028.16-42,841.21

Finding the Fourth Proportional to 76,832.32, 106,028.16 and 42,841.21

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Solution

The fourth proportional to 76,832.32, 106,028.16 and 42,841.21 is: 59,120.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,832.32 : 106,028.16 = 42,841.21 : x
  2. Step 2: Convert to fraction form
    76,832.32/106,028.16 = 42,841.21/x
  3. Step 3: Cross multiply
    76,832.32x = 106,028.16 × 42,841.21
  4. Step 4: Simplify right side
    76,832.32x = 4,542,374,535.94
  5. Step 5: Solve for x
    x = 4,542,374,535.94/76,832.32
  6. Step 6: Final answer
    x = 59,120.63

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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.