Home / 90,530.34-124,564.68-74,338.44

Finding the Fourth Proportional to 90,530.34, 124,564.68 and 74,338.44

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Solution

The fourth proportional to 90,530.34, 124,564.68 and 74,338.44 is: 102,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.34 : 124,564.68 = 74,338.44 : x
  2. Step 2: Convert to fraction form
    90,530.34/124,564.68 = 74,338.44/x
  3. Step 3: Cross multiply
    90,530.34x = 124,564.68 × 74,338.44
  4. Step 4: Simplify right side
    90,530.34x = 9,259,943,990.30
  5. Step 5: Solve for x
    x = 9,259,943,990.30/90,530.34
  6. Step 6: Final answer
    x = 102,285.53

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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.