Home / 51,143.46-70,669.52-39,842.15

Finding the Fourth Proportional to 51,143.46, 70,669.52 and 39,842.15

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Solution

The fourth proportional to 51,143.46, 70,669.52 and 39,842.15 is: 55,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,143.46 : 70,669.52 = 39,842.15 : x
  2. Step 2: Convert to fraction form
    51,143.46/70,669.52 = 39,842.15/x
  3. Step 3: Cross multiply
    51,143.46x = 70,669.52 × 39,842.15
  4. Step 4: Simplify right side
    51,143.46x = 2,815,625,063.71
  5. Step 5: Solve for x
    x = 2,815,625,063.71/51,143.46
  6. Step 6: Final answer
    x = 55,053.47

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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.