Home / 90,438.42-135,629.88-62,537.76

Finding the Fourth Proportional to 90,438.42, 135,629.88 and 62,537.76

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Solution

The fourth proportional to 90,438.42, 135,629.88 and 62,537.76 is: 93,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438.42 : 135,629.88 = 62,537.76 : x
  2. Step 2: Convert to fraction form
    90,438.42/135,629.88 = 62,537.76/x
  3. Step 3: Cross multiply
    90,438.42x = 135,629.88 × 62,537.76
  4. Step 4: Simplify right side
    90,438.42x = 8,481,988,884.27
  5. Step 5: Solve for x
    x = 8,481,988,884.27/90,438.42
  6. Step 6: Final answer
    x = 93,787.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.