Home / 99,040.60-136,663.44-56,601.88

Finding the Fourth Proportional to 99,040.60, 136,663.44 and 56,601.88

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Solution

The fourth proportional to 99,040.60, 136,663.44 and 56,601.88 is: 78,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,040.60 : 136,663.44 = 56,601.88 : x
  2. Step 2: Convert to fraction form
    99,040.60/136,663.44 = 56,601.88/x
  3. Step 3: Cross multiply
    99,040.60x = 136,663.44 × 56,601.88
  4. Step 4: Simplify right side
    99,040.60x = 7,735,407,631.27
  5. Step 5: Solve for x
    x = 7,735,407,631.27/99,040.60
  6. Step 6: Final answer
    x = 78,103.40

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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.