Home / 45,708.54-63,105-28,727.16

Finding the Fourth Proportional to 45,708.54, 63,105 and 28,727.16

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Solution

The fourth proportional to 45,708.54, 63,105 and 28,727.16 is: 39,660.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,708.54 : 63,105 = 28,727.16 : x
  2. Step 2: Convert to fraction form
    45,708.54/63,105 = 28,727.16/x
  3. Step 3: Cross multiply
    45,708.54x = 63,105 × 28,727.16
  4. Step 4: Simplify right side
    45,708.54x = 1,812,827,431.80
  5. Step 5: Solve for x
    x = 1,812,827,431.80/45,708.54
  6. Step 6: Final answer
    x = 39,660.58

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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.