Home / 51,450.12-71,001.43-28,789.15

Finding the Fourth Proportional to 51,450.12, 71,001.43 and 28,789.15

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Solution

The fourth proportional to 51,450.12, 71,001.43 and 28,789.15 is: 39,729.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,450.12 : 71,001.43 = 28,789.15 : x
  2. Step 2: Convert to fraction form
    51,450.12/71,001.43 = 28,789.15/x
  3. Step 3: Cross multiply
    51,450.12x = 71,001.43 × 28,789.15
  4. Step 4: Simplify right side
    51,450.12x = 2,044,070,818.48
  5. Step 5: Solve for x
    x = 2,044,070,818.48/51,450.12
  6. Step 6: Final answer
    x = 39,729.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.