Home / 87,881.90-121,274.43-49,643.24

Finding the Fourth Proportional to 87,881.90, 121,274.43 and 49,643.24

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Solution

The fourth proportional to 87,881.90, 121,274.43 and 49,643.24 is: 68,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,881.90 : 121,274.43 = 49,643.24 : x
  2. Step 2: Convert to fraction form
    87,881.90/121,274.43 = 49,643.24/x
  3. Step 3: Cross multiply
    87,881.90x = 121,274.43 × 49,643.24
  4. Step 4: Simplify right side
    87,881.90x = 6,020,455,634.35
  5. Step 5: Solve for x
    x = 6,020,455,634.35/87,881.90
  6. Step 6: Final answer
    x = 68,506.21

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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.