Home / 97,880.04-135,087.30-55,440

Finding the Fourth Proportional to 97,880.04, 135,087.30 and 55,440

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Solution

The fourth proportional to 97,880.04, 135,087.30 and 55,440 is: 76,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,880.04 : 135,087.30 = 55,440 : x
  2. Step 2: Convert to fraction form
    97,880.04/135,087.30 = 55,440/x
  3. Step 3: Cross multiply
    97,880.04x = 135,087.30 × 55,440
  4. Step 4: Simplify right side
    97,880.04x = 7,489,239,912.00
  5. Step 5: Solve for x
    x = 7,489,239,912.00/97,880.04
  6. Step 6: Final answer
    x = 76,514.48

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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.