Home / 82,950.54-124,425.75-20,621.04

Finding the Fourth Proportional to 82,950.54, 124,425.75 and 20,621.04

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Solution

The fourth proportional to 82,950.54, 124,425.75 and 20,621.04 is: 30,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,950.54 : 124,425.75 = 20,621.04 : x
  2. Step 2: Convert to fraction form
    82,950.54/124,425.75 = 20,621.04/x
  3. Step 3: Cross multiply
    82,950.54x = 124,425.75 × 20,621.04
  4. Step 4: Simplify right side
    82,950.54x = 2,565,788,367.78
  5. Step 5: Solve for x
    x = 2,565,788,367.78/82,950.54
  6. Step 6: Final answer
    x = 30,931.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.