Home / 99,977.39-137,968.41-54,655.36

Finding the Fourth Proportional to 99,977.39, 137,968.41 and 54,655.36

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Solution

The fourth proportional to 99,977.39, 137,968.41 and 54,655.36 is: 75,424.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,977.39 : 137,968.41 = 54,655.36 : x
  2. Step 2: Convert to fraction form
    99,977.39/137,968.41 = 54,655.36/x
  3. Step 3: Cross multiply
    99,977.39x = 137,968.41 × 54,655.36
  4. Step 4: Simplify right side
    99,977.39x = 7,540,712,977.21
  5. Step 5: Solve for x
    x = 7,540,712,977.21/99,977.39
  6. Step 6: Final answer
    x = 75,424.18

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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.