Home / 99,253.81-136,976.39-56,811.37

Finding the Fourth Proportional to 99,253.81, 136,976.39 and 56,811.37

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Solution

The fourth proportional to 99,253.81, 136,976.39 and 56,811.37 is: 78,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,253.81 : 136,976.39 = 56,811.37 : x
  2. Step 2: Convert to fraction form
    99,253.81/136,976.39 = 56,811.37/x
  3. Step 3: Cross multiply
    99,253.81x = 136,976.39 × 56,811.37
  4. Step 4: Simplify right side
    99,253.81x = 7,781,816,373.55
  5. Step 5: Solve for x
    x = 7,781,816,373.55/99,253.81
  6. Step 6: Final answer
    x = 78,403.20

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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.