Home / 55,824.67-77,039.48-30,330.78

Finding the Fourth Proportional to 55,824.67, 77,039.48 and 30,330.78

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Solution

The fourth proportional to 55,824.67, 77,039.48 and 30,330.78 is: 41,857.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,824.67 : 77,039.48 = 30,330.78 : x
  2. Step 2: Convert to fraction form
    55,824.67/77,039.48 = 30,330.78/x
  3. Step 3: Cross multiply
    55,824.67x = 77,039.48 × 30,330.78
  4. Step 4: Simplify right side
    55,824.67x = 2,336,667,519.19
  5. Step 5: Solve for x
    x = 2,336,667,519.19/55,824.67
  6. Step 6: Final answer
    x = 41,857.26

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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.