Home / 99,458.35-137,255.40-54,139.27

Finding the Fourth Proportional to 99,458.35, 137,255.40 and 54,139.27

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Solution

The fourth proportional to 99,458.35, 137,255.40 and 54,139.27 is: 74,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,458.35 : 137,255.40 = 54,139.27 : x
  2. Step 2: Convert to fraction form
    99,458.35/137,255.40 = 54,139.27/x
  3. Step 3: Cross multiply
    99,458.35x = 137,255.40 × 54,139.27
  4. Step 4: Simplify right side
    99,458.35x = 7,430,907,159.56
  5. Step 5: Solve for x
    x = 7,430,907,159.56/99,458.35
  6. Step 6: Final answer
    x = 74,713.76

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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.