Home / 51,021.54-76,454.34-21,423.24

Finding the Fourth Proportional to 51,021.54, 76,454.34 and 21,423.24

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Solution

The fourth proportional to 51,021.54, 76,454.34 and 21,423.24 is: 32,102.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,021.54 : 76,454.34 = 21,423.24 : x
  2. Step 2: Convert to fraction form
    51,021.54/76,454.34 = 21,423.24/x
  3. Step 3: Cross multiply
    51,021.54x = 76,454.34 × 21,423.24
  4. Step 4: Simplify right side
    51,021.54x = 1,637,899,674.86
  5. Step 5: Solve for x
    x = 1,637,899,674.86/51,021.54
  6. Step 6: Final answer
    x = 32,102.12

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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.