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Finding the Fourth Proportional to 51,346.80, 77,020.20 and 29,228.40

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Solution

The fourth proportional to 51,346.80, 77,020.20 and 29,228.40 is: 43,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,346.80 : 77,020.20 = 29,228.40 : x
  2. Step 2: Convert to fraction form
    51,346.80/77,020.20 = 29,228.40/x
  3. Step 3: Cross multiply
    51,346.80x = 77,020.20 × 29,228.40
  4. Step 4: Simplify right side
    51,346.80x = 2,251,177,213.68
  5. Step 5: Solve for x
    x = 2,251,177,213.68/51,346.80
  6. Step 6: Final answer
    x = 43,842.60

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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.