Home / 52,920.69-79,360.28-21,324.85

Finding the Fourth Proportional to 52,920.69, 79,360.28 and 21,324.85

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Solution

The fourth proportional to 52,920.69, 79,360.28 and 21,324.85 is: 31,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,920.69 : 79,360.28 = 21,324.85 : x
  2. Step 2: Convert to fraction form
    52,920.69/79,360.28 = 21,324.85/x
  3. Step 3: Cross multiply
    52,920.69x = 79,360.28 × 21,324.85
  4. Step 4: Simplify right side
    52,920.69x = 1,692,346,066.96
  5. Step 5: Solve for x
    x = 1,692,346,066.96/52,920.69
  6. Step 6: Final answer
    x = 31,978.91

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1.5x scale

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.