Home / 96,940.15-133,711.66-62,887.78

Finding the Fourth Proportional to 96,940.15, 133,711.66 and 62,887.78

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Solution

The fourth proportional to 96,940.15, 133,711.66 and 62,887.78 is: 86,742.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,940.15 : 133,711.66 = 62,887.78 : x
  2. Step 2: Convert to fraction form
    96,940.15/133,711.66 = 62,887.78/x
  3. Step 3: Cross multiply
    96,940.15x = 133,711.66 × 62,887.78
  4. Step 4: Simplify right side
    96,940.15x = 8,408,829,457.51
  5. Step 5: Solve for x
    x = 8,408,829,457.51/96,940.15
  6. Step 6: Final answer
    x = 86,742.48

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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.