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Finding the Fourth Proportional to 40,671, 56,161 and 25,588.80

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Solution

The fourth proportional to 40,671, 56,161 and 25,588.80 is: 35,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,671 : 56,161 = 25,588.80 : x
  2. Step 2: Convert to fraction form
    40,671/56,161 = 25,588.80/x
  3. Step 3: Cross multiply
    40,671x = 56,161 × 25,588.80
  4. Step 4: Simplify right side
    40,671x = 1,437,092,596.80
  5. Step 5: Solve for x
    x = 1,437,092,596.80/40,671
  6. Step 6: Final answer
    x = 35,334.58

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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.