Home / 98,331.64-135,696.38-55,887.36

Finding the Fourth Proportional to 98,331.64, 135,696.38 and 55,887.36

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Solution

The fourth proportional to 98,331.64, 135,696.38 and 55,887.36 is: 77,123.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,331.64 : 135,696.38 = 55,887.36 : x
  2. Step 2: Convert to fraction form
    98,331.64/135,696.38 = 55,887.36/x
  3. Step 3: Cross multiply
    98,331.64x = 135,696.38 × 55,887.36
  4. Step 4: Simplify right side
    98,331.64x = 7,583,712,439.76
  5. Step 5: Solve for x
    x = 7,583,712,439.76/98,331.64
  6. Step 6: Final answer
    x = 77,123.83

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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.