Home / 53,739.39-80,641.49-18,703.65

Finding the Fourth Proportional to 53,739.39, 80,641.49 and 18,703.65

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Solution

The fourth proportional to 53,739.39, 80,641.49 and 18,703.65 is: 28,066.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,739.39 : 80,641.49 = 18,703.65 : x
  2. Step 2: Convert to fraction form
    53,739.39/80,641.49 = 18,703.65/x
  3. Step 3: Cross multiply
    53,739.39x = 80,641.49 × 18,703.65
  4. Step 4: Simplify right side
    53,739.39x = 1,508,290,110.92
  5. Step 5: Solve for x
    x = 1,508,290,110.92/53,739.39
  6. Step 6: Final answer
    x = 28,066.75

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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.