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Finding the Fourth Proportional to 70,262.69, 105,395.40 and 25,866.59

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Solution

The fourth proportional to 70,262.69, 105,395.40 and 25,866.59 is: 38,800.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,262.69 : 105,395.40 = 25,866.59 : x
  2. Step 2: Convert to fraction form
    70,262.69/105,395.40 = 25,866.59/x
  3. Step 3: Cross multiply
    70,262.69x = 105,395.40 × 25,866.59
  4. Step 4: Simplify right side
    70,262.69x = 2,726,219,072.71
  5. Step 5: Solve for x
    x = 2,726,219,072.71/70,262.69
  6. Step 6: Final answer
    x = 38,800.38

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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.