Home / 53,290.10-79,920.57-20,007.61

Finding the Fourth Proportional to 53,290.10, 79,920.57 and 20,007.61

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Solution

The fourth proportional to 53,290.10, 79,920.57 and 20,007.61 is: 30,005.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,290.10 : 79,920.57 = 20,007.61 : x
  2. Step 2: Convert to fraction form
    53,290.10/79,920.57 = 20,007.61/x
  3. Step 3: Cross multiply
    53,290.10x = 79,920.57 × 20,007.61
  4. Step 4: Simplify right side
    53,290.10x = 1,599,019,195.93
  5. Step 5: Solve for x
    x = 1,599,019,195.93/53,290.10
  6. Step 6: Final answer
    x = 30,005.93

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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.