Home / 90,865.47-125,398.05-50,576.68

Finding the Fourth Proportional to 90,865.47, 125,398.05 and 50,576.68

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Solution

The fourth proportional to 90,865.47, 125,398.05 and 50,576.68 is: 69,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,865.47 : 125,398.05 = 50,576.68 : x
  2. Step 2: Convert to fraction form
    90,865.47/125,398.05 = 50,576.68/x
  3. Step 3: Cross multiply
    90,865.47x = 125,398.05 × 50,576.68
  4. Step 4: Simplify right side
    90,865.47x = 6,342,217,047.47
  5. Step 5: Solve for x
    x = 6,342,217,047.47/90,865.47
  6. Step 6: Final answer
    x = 69,797.88

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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.