Home / 45,718.72-63,096.16-28,725.76

Finding the Fourth Proportional to 45,718.72, 63,096.16 and 28,725.76

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Solution

The fourth proportional to 45,718.72, 63,096.16 and 28,725.76 is: 39,644.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,718.72 : 63,096.16 = 28,725.76 : x
  2. Step 2: Convert to fraction form
    45,718.72/63,096.16 = 28,725.76/x
  3. Step 3: Cross multiply
    45,718.72x = 63,096.16 × 28,725.76
  4. Step 4: Simplify right side
    45,718.72x = 1,812,485,149.08
  5. Step 5: Solve for x
    x = 1,812,485,149.08/45,718.72
  6. Step 6: Final answer
    x = 39,644.27

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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.