Home / 73,934.40-102,028.80-42,103.20

Finding the Fourth Proportional to 73,934.40, 102,028.80 and 42,103.20

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Solution

The fourth proportional to 73,934.40, 102,028.80 and 42,103.20 is: 58,102.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,934.40 : 102,028.80 = 42,103.20 : x
  2. Step 2: Convert to fraction form
    73,934.40/102,028.80 = 42,103.20/x
  3. Step 3: Cross multiply
    73,934.40x = 102,028.80 × 42,103.20
  4. Step 4: Simplify right side
    73,934.40x = 4,295,738,972.16
  5. Step 5: Solve for x
    x = 4,295,738,972.16/73,934.40
  6. Step 6: Final answer
    x = 58,102.03

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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.