Home / 99,662.45-137,535.26-54,340.07

Finding the Fourth Proportional to 99,662.45, 137,535.26 and 54,340.07

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Solution

The fourth proportional to 99,662.45, 137,535.26 and 54,340.07 is: 74,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662.45 : 137,535.26 = 54,340.07 : x
  2. Step 2: Convert to fraction form
    99,662.45/137,535.26 = 54,340.07/x
  3. Step 3: Cross multiply
    99,662.45x = 137,535.26 × 54,340.07
  4. Step 4: Simplify right side
    99,662.45x = 7,473,674,696.49
  5. Step 5: Solve for x
    x = 7,473,674,696.49/99,662.45
  6. Step 6: Final answer
    x = 74,989.88

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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.