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Finding the Fourth Proportional to 55,600.30, 76,728.30 and 30,106.68

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Solution

The fourth proportional to 55,600.30, 76,728.30 and 30,106.68 is: 41,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,600.30 : 76,728.30 = 30,106.68 : x
  2. Step 2: Convert to fraction form
    55,600.30/76,728.30 = 30,106.68/x
  3. Step 3: Cross multiply
    55,600.30x = 76,728.30 × 30,106.68
  4. Step 4: Simplify right side
    55,600.30x = 2,310,034,375.04
  5. Step 5: Solve for x
    x = 2,310,034,375.04/55,600.30
  6. Step 6: Final answer
    x = 41,547.16

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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.