Home / 97,128.96-134,036.48-54,687.36

Finding the Fourth Proportional to 97,128.96, 134,036.48 and 54,687.36

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Solution

The fourth proportional to 97,128.96, 134,036.48 and 54,687.36 is: 75,467.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,128.96 : 134,036.48 = 54,687.36 : x
  2. Step 2: Convert to fraction form
    97,128.96/134,036.48 = 54,687.36/x
  3. Step 3: Cross multiply
    97,128.96x = 134,036.48 × 54,687.36
  4. Step 4: Simplify right side
    97,128.96x = 7,330,101,234.89
  5. Step 5: Solve for x
    x = 7,330,101,234.89/97,128.96
  6. Step 6: Final answer
    x = 75,467.72

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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.