Home / 55,428.24-76,488.12-30,272.88

Finding the Fourth Proportional to 55,428.24, 76,488.12 and 30,272.88

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Solution

The fourth proportional to 55,428.24, 76,488.12 and 30,272.88 is: 41,775.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.24 : 76,488.12 = 30,272.88 : x
  2. Step 2: Convert to fraction form
    55,428.24/76,488.12 = 30,272.88/x
  3. Step 3: Cross multiply
    55,428.24x = 76,488.12 × 30,272.88
  4. Step 4: Simplify right side
    55,428.24x = 2,315,515,678.19
  5. Step 5: Solve for x
    x = 2,315,515,678.19/55,428.24
  6. Step 6: Final answer
    x = 41,775.02

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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.