Home / 90,576.58-124,989.90-50,290.34

Finding the Fourth Proportional to 90,576.58, 124,989.90 and 50,290.34

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Solution

The fourth proportional to 90,576.58, 124,989.90 and 50,290.34 is: 69,397.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,576.58 : 124,989.90 = 50,290.34 : x
  2. Step 2: Convert to fraction form
    90,576.58/124,989.90 = 50,290.34/x
  3. Step 3: Cross multiply
    90,576.58x = 124,989.90 × 50,290.34
  4. Step 4: Simplify right side
    90,576.58x = 6,285,784,567.57
  5. Step 5: Solve for x
    x = 6,285,784,567.57/90,576.58
  6. Step 6: Final answer
    x = 69,397.46

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1.5x scale

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.