Home / 45,725.88-68,381.46-45,155.64

Finding the Fourth Proportional to 45,725.88, 68,381.46 and 45,155.64

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Solution

The fourth proportional to 45,725.88, 68,381.46 and 45,155.64 is: 67,528.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,725.88 : 68,381.46 = 45,155.64 : x
  2. Step 2: Convert to fraction form
    45,725.88/68,381.46 = 45,155.64/x
  3. Step 3: Cross multiply
    45,725.88x = 68,381.46 × 45,155.64
  4. Step 4: Simplify right side
    45,725.88x = 3,087,808,590.43
  5. Step 5: Solve for x
    x = 3,087,808,590.43/45,725.88
  6. Step 6: Final answer
    x = 67,528.69

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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.