Home / 87,960.18-121,391.24-49,720.01

Finding the Fourth Proportional to 87,960.18, 121,391.24 and 49,720.01

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Solution

The fourth proportional to 87,960.18, 121,391.24 and 49,720.01 is: 68,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,960.18 : 121,391.24 = 49,720.01 : x
  2. Step 2: Convert to fraction form
    87,960.18/121,391.24 = 49,720.01/x
  3. Step 3: Cross multiply
    87,960.18x = 121,391.24 × 49,720.01
  4. Step 4: Simplify right side
    87,960.18x = 6,035,573,666.71
  5. Step 5: Solve for x
    x = 6,035,573,666.71/87,960.18
  6. Step 6: Final answer
    x = 68,617.11

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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.