Home / 45,748.80-68,738.40-29,116.80

Finding the Fourth Proportional to 45,748.80, 68,738.40 and 29,116.80

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Solution

The fourth proportional to 45,748.80, 68,738.40 and 29,116.80 is: 43,748.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,748.80 : 68,738.40 = 29,116.80 : x
  2. Step 2: Convert to fraction form
    45,748.80/68,738.40 = 29,116.80/x
  3. Step 3: Cross multiply
    45,748.80x = 68,738.40 × 29,116.80
  4. Step 4: Simplify right side
    45,748.80x = 2,001,442,245.12
  5. Step 5: Solve for x
    x = 2,001,442,245.12/45,748.80
  6. Step 6: Final answer
    x = 43,748.52

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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.