Home / 99,365.26-137,124.70-54,043.57

Finding the Fourth Proportional to 99,365.26, 137,124.70 and 54,043.57

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Solution

The fourth proportional to 99,365.26, 137,124.70 and 54,043.57 is: 74,580.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,365.26 : 137,124.70 = 54,043.57 : x
  2. Step 2: Convert to fraction form
    99,365.26/137,124.70 = 54,043.57/x
  3. Step 3: Cross multiply
    99,365.26x = 137,124.70 × 54,043.57
  4. Step 4: Simplify right side
    99,365.26x = 7,410,707,845.26
  5. Step 5: Solve for x
    x = 7,410,707,845.26/99,365.26
  6. Step 6: Final answer
    x = 74,580.47

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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.