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Finding the Fourth Proportional to 73,465.20, 101,381.04 and 39,931.20

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Solution

The fourth proportional to 73,465.20, 101,381.04 and 39,931.20 is: 55,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,465.20 : 101,381.04 = 39,931.20 : x
  2. Step 2: Convert to fraction form
    73,465.20/101,381.04 = 39,931.20/x
  3. Step 3: Cross multiply
    73,465.20x = 101,381.04 × 39,931.20
  4. Step 4: Simplify right side
    73,465.20x = 4,048,266,584.45
  5. Step 5: Solve for x
    x = 4,048,266,584.45/73,465.20
  6. Step 6: Final answer
    x = 55,104.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.