Home / 53,479.09-80,158.49-20,176.55

Finding the Fourth Proportional to 53,479.09, 80,158.49 and 20,176.55

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Solution

The fourth proportional to 53,479.09, 80,158.49 and 20,176.55 is: 30,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,479.09 : 80,158.49 = 20,176.55 : x
  2. Step 2: Convert to fraction form
    53,479.09/80,158.49 = 20,176.55/x
  3. Step 3: Cross multiply
    53,479.09x = 80,158.49 × 20,176.55
  4. Step 4: Simplify right side
    53,479.09x = 1,617,321,781.41
  5. Step 5: Solve for x
    x = 1,617,321,781.41/53,479.09
  6. Step 6: Final answer
    x = 30,242.13

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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.