Home / 90,369.78-124,710.29-50,089.59

Finding the Fourth Proportional to 90,369.78, 124,710.29 and 50,089.59

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Solution

The fourth proportional to 90,369.78, 124,710.29 and 50,089.59 is: 69,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,369.78 : 124,710.29 = 50,089.59 : x
  2. Step 2: Convert to fraction form
    90,369.78/124,710.29 = 50,089.59/x
  3. Step 3: Cross multiply
    90,369.78x = 124,710.29 × 50,089.59
  4. Step 4: Simplify right side
    90,369.78x = 6,246,687,232.27
  5. Step 5: Solve for x
    x = 6,246,687,232.27/90,369.78
  6. Step 6: Final answer
    x = 69,123.63

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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.