Home / 50,830.06-70,139.37-28,169.32

Finding the Fourth Proportional to 50,830.06, 70,139.37 and 28,169.32

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Solution

The fourth proportional to 50,830.06, 70,139.37 and 28,169.32 is: 38,870.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,830.06 : 70,139.37 = 28,169.32 : x
  2. Step 2: Convert to fraction form
    50,830.06/70,139.37 = 28,169.32/x
  3. Step 3: Cross multiply
    50,830.06x = 70,139.37 × 28,169.32
  4. Step 4: Simplify right side
    50,830.06x = 1,975,778,261.47
  5. Step 5: Solve for x
    x = 1,975,778,261.47/50,830.06
  6. Step 6: Final answer
    x = 38,870.27

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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.