Home / 51,004.20-76,506.30-21,412.20

Finding the Fourth Proportional to 51,004.20, 76,506.30 and 21,412.20

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Solution

The fourth proportional to 51,004.20, 76,506.30 and 21,412.20 is: 32,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,004.20 : 76,506.30 = 21,412.20 : x
  2. Step 2: Convert to fraction form
    51,004.20/76,506.30 = 21,412.20/x
  3. Step 3: Cross multiply
    51,004.20x = 76,506.30 × 21,412.20
  4. Step 4: Simplify right side
    51,004.20x = 1,638,168,196.86
  5. Step 5: Solve for x
    x = 1,638,168,196.86/51,004.20
  6. Step 6: Final answer
    x = 32,118.30

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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.