Home / 98,931.36-136,524.96-53,609.52

Finding the Fourth Proportional to 98,931.36, 136,524.96 and 53,609.52

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Solution

The fourth proportional to 98,931.36, 136,524.96 and 53,609.52 is: 73,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,931.36 : 136,524.96 = 53,609.52 : x
  2. Step 2: Convert to fraction form
    98,931.36/136,524.96 = 53,609.52/x
  3. Step 3: Cross multiply
    98,931.36x = 136,524.96 × 53,609.52
  4. Step 4: Simplify right side
    98,931.36x = 7,319,037,573.62
  5. Step 5: Solve for x
    x = 7,319,037,573.62/98,931.36
  6. Step 6: Final answer
    x = 73,980.97

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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.