Home / 52,249.79-72,123.11-31,028.91

Finding the Fourth Proportional to 52,249.79, 72,123.11 and 31,028.91

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Solution

The fourth proportional to 52,249.79, 72,123.11 and 31,028.91 is: 42,830.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,249.79 : 72,123.11 = 31,028.91 : x
  2. Step 2: Convert to fraction form
    52,249.79/72,123.11 = 31,028.91/x
  3. Step 3: Cross multiply
    52,249.79x = 72,123.11 × 31,028.91
  4. Step 4: Simplify right side
    52,249.79x = 2,237,901,179.86
  5. Step 5: Solve for x
    x = 2,237,901,179.86/52,249.79
  6. Step 6: Final answer
    x = 42,830.81

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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.