Home / 86,639.88-119,569.98-68,881.44

Finding the Fourth Proportional to 86,639.88, 119,569.98 and 68,881.44

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Solution

The fourth proportional to 86,639.88, 119,569.98 and 68,881.44 is: 95,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,639.88 : 119,569.98 = 68,881.44 : x
  2. Step 2: Convert to fraction form
    86,639.88/119,569.98 = 68,881.44/x
  3. Step 3: Cross multiply
    86,639.88x = 119,569.98 × 68,881.44
  4. Step 4: Simplify right side
    86,639.88x = 8,236,152,403.17
  5. Step 5: Solve for x
    x = 8,236,152,403.17/86,639.88
  6. Step 6: Final answer
    x = 95,061.91

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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.