Home / 45,390.61-68,087.75-15,811.44

Finding the Fourth Proportional to 45,390.61, 68,087.75 and 15,811.44

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Solution

The fourth proportional to 45,390.61, 68,087.75 and 15,811.44 is: 23,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,390.61 : 68,087.75 = 15,811.44 : x
  2. Step 2: Convert to fraction form
    45,390.61/68,087.75 = 15,811.44/x
  3. Step 3: Cross multiply
    45,390.61x = 68,087.75 × 15,811.44
  4. Step 4: Simplify right side
    45,390.61x = 1,076,565,373.86
  5. Step 5: Solve for x
    x = 1,076,565,373.86/45,390.61
  6. Step 6: Final answer
    x = 23,717.80

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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.