Home / 74,260.92-111,389.54-21,670.86

Finding the Fourth Proportional to 74,260.92, 111,389.54 and 21,670.86

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Solution

The fourth proportional to 74,260.92, 111,389.54 and 21,670.86 is: 32,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,260.92 : 111,389.54 = 21,670.86 : x
  2. Step 2: Convert to fraction form
    74,260.92/111,389.54 = 21,670.86/x
  3. Step 3: Cross multiply
    74,260.92x = 111,389.54 × 21,670.86
  4. Step 4: Simplify right side
    74,260.92x = 2,413,907,018.45
  5. Step 5: Solve for x
    x = 2,413,907,018.45/74,260.92
  6. Step 6: Final answer
    x = 32,505.75

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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.