Home / 55,904.38-77,149.44-30,412.18

Finding the Fourth Proportional to 55,904.38, 77,149.44 and 30,412.18

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Solution

The fourth proportional to 55,904.38, 77,149.44 and 30,412.18 is: 41,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.38 : 77,149.44 = 30,412.18 : x
  2. Step 2: Convert to fraction form
    55,904.38/77,149.44 = 30,412.18/x
  3. Step 3: Cross multiply
    55,904.38x = 77,149.44 × 30,412.18
  4. Step 4: Simplify right side
    55,904.38x = 2,346,282,270.43
  5. Step 5: Solve for x
    x = 2,346,282,270.43/55,904.38
  6. Step 6: Final answer
    x = 41,969.56

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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.