Home / 87,541.87-120,802.82-51,735.21

Finding the Fourth Proportional to 87,541.87, 120,802.82 and 51,735.21

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Solution

The fourth proportional to 87,541.87, 120,802.82 and 51,735.21 is: 71,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,541.87 : 120,802.82 = 51,735.21 : x
  2. Step 2: Convert to fraction form
    87,541.87/120,802.82 = 51,735.21/x
  3. Step 3: Cross multiply
    87,541.87x = 120,802.82 × 51,735.21
  4. Step 4: Simplify right side
    87,541.87x = 6,249,759,261.29
  5. Step 5: Solve for x
    x = 6,249,759,261.29/87,541.87
  6. Step 6: Final answer
    x = 71,391.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.