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Finding the Fourth Proportional to 70,037.76, 105,042.51 and 25,649.36

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Solution

The fourth proportional to 70,037.76, 105,042.51 and 25,649.36 is: 38,468.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,037.76 : 105,042.51 = 25,649.36 : x
  2. Step 2: Convert to fraction form
    70,037.76/105,042.51 = 25,649.36/x
  3. Step 3: Cross multiply
    70,037.76x = 105,042.51 × 25,649.36
  4. Step 4: Simplify right side
    70,037.76x = 2,694,272,629.08
  5. Step 5: Solve for x
    x = 2,694,272,629.08/70,037.76
  6. Step 6: Final answer
    x = 38,468.86

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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.