Home / 90,388.38-124,732.51-50,102.76

Finding the Fourth Proportional to 90,388.38, 124,732.51 and 50,102.76

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Solution

The fourth proportional to 90,388.38, 124,732.51 and 50,102.76 is: 69,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,388.38 : 124,732.51 = 50,102.76 : x
  2. Step 2: Convert to fraction form
    90,388.38/124,732.51 = 50,102.76/x
  3. Step 3: Cross multiply
    90,388.38x = 124,732.51 × 50,102.76
  4. Step 4: Simplify right side
    90,388.38x = 6,249,443,012.73
  5. Step 5: Solve for x
    x = 6,249,443,012.73/90,388.38
  6. Step 6: Final answer
    x = 69,139.89

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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.