Home / 52,842.03-72,921.30-28,968.71

Finding the Fourth Proportional to 52,842.03, 72,921.30 and 28,968.71

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Solution

The fourth proportional to 52,842.03, 72,921.30 and 28,968.71 is: 39,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,842.03 : 72,921.30 = 28,968.71 : x
  2. Step 2: Convert to fraction form
    52,842.03/72,921.30 = 28,968.71/x
  3. Step 3: Cross multiply
    52,842.03x = 72,921.30 × 28,968.71
  4. Step 4: Simplify right side
    52,842.03x = 2,112,435,627.92
  5. Step 5: Solve for x
    x = 2,112,435,627.92/52,842.03
  6. Step 6: Final answer
    x = 39,976.43

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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.