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Finding the Fourth Proportional to 101,349.56, 139,850.28 and 56,021.42

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Solution

The fourth proportional to 101,349.56, 139,850.28 and 56,021.42 is: 77,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,349.56 : 139,850.28 = 56,021.42 : x
  2. Step 2: Convert to fraction form
    101,349.56/139,850.28 = 56,021.42/x
  3. Step 3: Cross multiply
    101,349.56x = 139,850.28 × 56,021.42
  4. Step 4: Simplify right side
    101,349.56x = 7,834,611,622.62
  5. Step 5: Solve for x
    x = 7,834,611,622.62/101,349.56
  6. Step 6: Final answer
    x = 77,302.87

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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.