Home / 97,840.63-135,020.60-55,407.43

Finding the Fourth Proportional to 97,840.63, 135,020.60 and 55,407.43

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Solution

The fourth proportional to 97,840.63, 135,020.60 and 55,407.43 is: 76,462.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,840.63 : 135,020.60 = 55,407.43 : x
  2. Step 2: Convert to fraction form
    97,840.63/135,020.60 = 55,407.43/x
  3. Step 3: Cross multiply
    97,840.63x = 135,020.60 × 55,407.43
  4. Step 4: Simplify right side
    97,840.63x = 7,481,144,443.06
  5. Step 5: Solve for x
    x = 7,481,144,443.06/97,840.63
  6. Step 6: Final answer
    x = 76,462.55

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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.