Home / 81,074.32-121,608.84-36,701.10

Finding the Fourth Proportional to 81,074.32, 121,608.84 and 36,701.10

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Solution

The fourth proportional to 81,074.32, 121,608.84 and 36,701.10 is: 55,050.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,074.32 : 121,608.84 = 36,701.10 : x
  2. Step 2: Convert to fraction form
    81,074.32/121,608.84 = 36,701.10/x
  3. Step 3: Cross multiply
    81,074.32x = 121,608.84 × 36,701.10
  4. Step 4: Simplify right side
    81,074.32x = 4,463,178,335.35
  5. Step 5: Solve for x
    x = 4,463,178,335.35/81,074.32
  6. Step 6: Final answer
    x = 55,050.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.