Home / 87,638.02-131,444.67-28,474.41

Finding the Fourth Proportional to 87,638.02, 131,444.67 and 28,474.41

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Solution

The fourth proportional to 87,638.02, 131,444.67 and 28,474.41 is: 42,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,638.02 : 131,444.67 = 28,474.41 : x
  2. Step 2: Convert to fraction form
    87,638.02/131,444.67 = 28,474.41/x
  3. Step 3: Cross multiply
    87,638.02x = 131,444.67 × 28,474.41
  4. Step 4: Simplify right side
    87,638.02x = 3,742,809,425.89
  5. Step 5: Solve for x
    x = 3,742,809,425.89/87,638.02
  6. Step 6: Final answer
    x = 42,707.60

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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.