Home / 55,386.11-76,432.82-30,235.61

Finding the Fourth Proportional to 55,386.11, 76,432.82 and 30,235.61

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Solution

The fourth proportional to 55,386.11, 76,432.82 and 30,235.61 is: 41,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,386.11 : 76,432.82 = 30,235.61 : x
  2. Step 2: Convert to fraction form
    55,386.11/76,432.82 = 30,235.61/x
  3. Step 3: Cross multiply
    55,386.11x = 76,432.82 × 30,235.61
  4. Step 4: Simplify right side
    55,386.11x = 2,310,992,976.62
  5. Step 5: Solve for x
    x = 2,310,992,976.62/55,386.11
  6. Step 6: Final answer
    x = 41,725.13

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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.