Home / 51,016.39-70,403.81-28,356.33

Finding the Fourth Proportional to 51,016.39, 70,403.81 and 28,356.33

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Solution

The fourth proportional to 51,016.39, 70,403.81 and 28,356.33 is: 39,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,016.39 : 70,403.81 = 28,356.33 : x
  2. Step 2: Convert to fraction form
    51,016.39/70,403.81 = 28,356.33/x
  3. Step 3: Cross multiply
    51,016.39x = 70,403.81 × 28,356.33
  4. Step 4: Simplify right side
    51,016.39x = 1,996,393,669.62
  5. Step 5: Solve for x
    x = 1,996,393,669.62/51,016.39
  6. Step 6: Final answer
    x = 39,132.40

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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.