Home / 87,792.30-131,643.63-28,589.94

Finding the Fourth Proportional to 87,792.30, 131,643.63 and 28,589.94

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Solution

The fourth proportional to 87,792.30, 131,643.63 and 28,589.94 is: 42,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,792.30 : 131,643.63 = 28,589.94 : x
  2. Step 2: Convert to fraction form
    87,792.30/131,643.63 = 28,589.94/x
  3. Step 3: Cross multiply
    87,792.30x = 131,643.63 × 28,589.94
  4. Step 4: Simplify right side
    87,792.30x = 3,763,683,483.08
  5. Step 5: Solve for x
    x = 3,763,683,483.08/87,792.30
  6. Step 6: Final answer
    x = 42,870.31

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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.