Home / 99,553.02-137,384.22-54,231.36

Finding the Fourth Proportional to 99,553.02, 137,384.22 and 54,231.36

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Solution

The fourth proportional to 99,553.02, 137,384.22 and 54,231.36 is: 74,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,553.02 : 137,384.22 = 54,231.36 : x
  2. Step 2: Convert to fraction form
    99,553.02/137,384.22 = 54,231.36/x
  3. Step 3: Cross multiply
    99,553.02x = 137,384.22 × 54,231.36
  4. Step 4: Simplify right side
    99,553.02x = 7,450,533,093.14
  5. Step 5: Solve for x
    x = 7,450,533,093.14/99,553.02
  6. Step 6: Final answer
    x = 74,839.85

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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.