Home / 52,160.96-71,981.73-28,287.68

Finding the Fourth Proportional to 52,160.96, 71,981.73 and 28,287.68

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Solution

The fourth proportional to 52,160.96, 71,981.73 and 28,287.68 is: 39,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,160.96 : 71,981.73 = 28,287.68 : x
  2. Step 2: Convert to fraction form
    52,160.96/71,981.73 = 28,287.68/x
  3. Step 3: Cross multiply
    52,160.96x = 71,981.73 × 28,287.68
  4. Step 4: Simplify right side
    52,160.96x = 2,036,196,144.09
  5. Step 5: Solve for x
    x = 2,036,196,144.09/52,160.96
  6. Step 6: Final answer
    x = 39,036.78

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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.