Home / 45,585.72-68,153.78-38,643.20

Finding the Fourth Proportional to 45,585.72, 68,153.78 and 38,643.20

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Solution

The fourth proportional to 45,585.72, 68,153.78 and 38,643.20 is: 57,774.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,585.72 : 68,153.78 = 38,643.20 : x
  2. Step 2: Convert to fraction form
    45,585.72/68,153.78 = 38,643.20/x
  3. Step 3: Cross multiply
    45,585.72x = 68,153.78 × 38,643.20
  4. Step 4: Simplify right side
    45,585.72x = 2,633,680,151.30
  5. Step 5: Solve for x
    x = 2,633,680,151.30/45,585.72
  6. Step 6: Final answer
    x = 57,774.24

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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.