Home / 97,931.46-135,137.79-55,496.64

Finding the Fourth Proportional to 97,931.46, 135,137.79 and 55,496.64

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Solution

The fourth proportional to 97,931.46, 135,137.79 and 55,496.64 is: 76,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,931.46 : 135,137.79 = 55,496.64 : x
  2. Step 2: Convert to fraction form
    97,931.46/135,137.79 = 55,496.64/x
  3. Step 3: Cross multiply
    97,931.46x = 135,137.79 × 55,496.64
  4. Step 4: Simplify right side
    97,931.46x = 7,499,693,282.03
  5. Step 5: Solve for x
    x = 7,499,693,282.03/97,931.46
  6. Step 6: Final answer
    x = 76,581.04

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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.