Home / 75,809.21-113,621.55-53,628.98

Finding the Fourth Proportional to 75,809.21, 113,621.55 and 53,628.98

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Solution

The fourth proportional to 75,809.21, 113,621.55 and 53,628.98 is: 80,378.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,809.21 : 113,621.55 = 53,628.98 : x
  2. Step 2: Convert to fraction form
    75,809.21/113,621.55 = 53,628.98/x
  3. Step 3: Cross multiply
    75,809.21x = 113,621.55 × 53,628.98
  4. Step 4: Simplify right side
    75,809.21x = 6,093,407,264.41
  5. Step 5: Solve for x
    x = 6,093,407,264.41/75,809.21
  6. Step 6: Final answer
    x = 80,378.20

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1.5x scale

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.