Home / 52,845.82-72,928.25-28,971.07

Finding the Fourth Proportional to 52,845.82, 72,928.25 and 28,971.07

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Solution

The fourth proportional to 52,845.82, 72,928.25 and 28,971.07 is: 39,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,845.82 : 72,928.25 = 28,971.07 : x
  2. Step 2: Convert to fraction form
    52,845.82/72,928.25 = 28,971.07/x
  3. Step 3: Cross multiply
    52,845.82x = 72,928.25 × 28,971.07
  4. Step 4: Simplify right side
    52,845.82x = 2,112,809,217.19
  5. Step 5: Solve for x
    x = 2,112,809,217.19/52,845.82
  6. Step 6: Final answer
    x = 39,980.63

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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.