Home / 87,361.76-131,030.04-39,962.72

Finding the Fourth Proportional to 87,361.76, 131,030.04 and 39,962.72

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Solution

The fourth proportional to 87,361.76, 131,030.04 and 39,962.72 is: 59,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,361.76 : 131,030.04 = 39,962.72 : x
  2. Step 2: Convert to fraction form
    87,361.76/131,030.04 = 39,962.72/x
  3. Step 3: Cross multiply
    87,361.76x = 131,030.04 × 39,962.72
  4. Step 4: Simplify right side
    87,361.76x = 5,236,316,800.11
  5. Step 5: Solve for x
    x = 5,236,316,800.11/87,361.76
  6. Step 6: Final answer
    x = 59,938.32

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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.