Home / 50,979.90-70,353.53-28,317.80

Finding the Fourth Proportional to 50,979.90, 70,353.53 and 28,317.80

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Solution

The fourth proportional to 50,979.90, 70,353.53 and 28,317.80 is: 39,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.90 : 70,353.53 = 28,317.80 : x
  2. Step 2: Convert to fraction form
    50,979.90/70,353.53 = 28,317.80/x
  3. Step 3: Cross multiply
    50,979.90x = 70,353.53 × 28,317.80
  4. Step 4: Simplify right side
    50,979.90x = 1,992,257,191.83
  5. Step 5: Solve for x
    x = 1,992,257,191.83/50,979.90
  6. Step 6: Final answer
    x = 39,079.27

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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.