Home / 50,778.09-70,072.70-28,116.32

Finding the Fourth Proportional to 50,778.09, 70,072.70 and 28,116.32

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Solution

The fourth proportional to 50,778.09, 70,072.70 and 28,116.32 is: 38,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,778.09 : 70,072.70 = 28,116.32 : x
  2. Step 2: Convert to fraction form
    50,778.09/70,072.70 = 28,116.32/x
  3. Step 3: Cross multiply
    50,778.09x = 70,072.70 × 28,116.32
  4. Step 4: Simplify right side
    50,778.09x = 1,970,185,965.52
  5. Step 5: Solve for x
    x = 1,970,185,965.52/50,778.09
  6. Step 6: Final answer
    x = 38,799.92

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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.