Home / 89,284.77-134,461.62-81,313.16

Finding the Fourth Proportional to 89,284.77, 134,461.62 and 81,313.16

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Solution

The fourth proportional to 89,284.77, 134,461.62 and 81,313.16 is: 122,456.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,284.77 : 134,461.62 = 81,313.16 : x
  2. Step 2: Convert to fraction form
    89,284.77/134,461.62 = 81,313.16/x
  3. Step 3: Cross multiply
    89,284.77x = 134,461.62 × 81,313.16
  4. Step 4: Simplify right side
    89,284.77x = 10,933,498,548.61
  5. Step 5: Solve for x
    x = 10,933,498,548.61/89,284.77
  6. Step 6: Final answer
    x = 122,456.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.