Home / 45,780.20-68,670.30-20,832.20

Finding the Fourth Proportional to 45,780.20, 68,670.30 and 20,832.20

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Solution

The fourth proportional to 45,780.20, 68,670.30 and 20,832.20 is: 31,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,780.20 : 68,670.30 = 20,832.20 : x
  2. Step 2: Convert to fraction form
    45,780.20/68,670.30 = 20,832.20/x
  3. Step 3: Cross multiply
    45,780.20x = 68,670.30 × 20,832.20
  4. Step 4: Simplify right side
    45,780.20x = 1,430,553,423.66
  5. Step 5: Solve for x
    x = 1,430,553,423.66/45,780.20
  6. Step 6: Final answer
    x = 31,248.30

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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.