Home / 55,580.28-76,700.03-30,429.78

Finding the Fourth Proportional to 55,580.28, 76,700.03 and 30,429.78

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Solution

The fourth proportional to 55,580.28, 76,700.03 and 30,429.78 is: 41,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,580.28 : 76,700.03 = 30,429.78 : x
  2. Step 2: Convert to fraction form
    55,580.28/76,700.03 = 30,429.78/x
  3. Step 3: Cross multiply
    55,580.28x = 76,700.03 × 30,429.78
  4. Step 4: Simplify right side
    55,580.28x = 2,333,964,886.74
  5. Step 5: Solve for x
    x = 2,333,964,886.74/55,580.28
  6. Step 6: Final answer
    x = 41,992.68

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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.