Home / 55,642.26-76,789.96-30,491.76

Finding the Fourth Proportional to 55,642.26, 76,789.96 and 30,491.76

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Solution

The fourth proportional to 55,642.26, 76,789.96 and 30,491.76 is: 42,080.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,642.26 : 76,789.96 = 30,491.76 : x
  2. Step 2: Convert to fraction form
    55,642.26/76,789.96 = 30,491.76/x
  3. Step 3: Cross multiply
    55,642.26x = 76,789.96 × 30,491.76
  4. Step 4: Simplify right side
    55,642.26x = 2,341,461,030.73
  5. Step 5: Solve for x
    x = 2,341,461,030.73/55,642.26
  6. Step 6: Final answer
    x = 42,080.62

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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.