Home / 89,040.40-133,539-29,860.72

Finding the Fourth Proportional to 89,040.40, 133,539 and 29,860.72

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Solution

The fourth proportional to 89,040.40, 133,539 and 29,860.72 is: 44,783.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,040.40 : 133,539 = 29,860.72 : x
  2. Step 2: Convert to fraction form
    89,040.40/133,539 = 29,860.72/x
  3. Step 3: Cross multiply
    89,040.40x = 133,539 × 29,860.72
  4. Step 4: Simplify right side
    89,040.40x = 3,987,570,688.08
  5. Step 5: Solve for x
    x = 3,987,570,688.08/89,040.40
  6. Step 6: Final answer
    x = 44,783.84

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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.