Home / 98,792.15-136,331.79-56,351.39

Finding the Fourth Proportional to 98,792.15, 136,331.79 and 56,351.39

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Solution

The fourth proportional to 98,792.15, 136,331.79 and 56,351.39 is: 77,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,792.15 : 136,331.79 = 56,351.39 : x
  2. Step 2: Convert to fraction form
    98,792.15/136,331.79 = 56,351.39/x
  3. Step 3: Cross multiply
    98,792.15x = 136,331.79 × 56,351.39
  4. Step 4: Simplify right side
    98,792.15x = 7,682,485,867.69
  5. Step 5: Solve for x
    x = 7,682,485,867.69/98,792.15
  6. Step 6: Final answer
    x = 77,764.13

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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.