Home / 75,231.04-112,920-35,815.36

Finding the Fourth Proportional to 75,231.04, 112,920 and 35,815.36

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Solution

The fourth proportional to 75,231.04, 112,920 and 35,815.36 is: 53,758.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,231.04 : 112,920 = 35,815.36 : x
  2. Step 2: Convert to fraction form
    75,231.04/112,920 = 35,815.36/x
  3. Step 3: Cross multiply
    75,231.04x = 112,920 × 35,815.36
  4. Step 4: Simplify right side
    75,231.04x = 4,044,270,451.20
  5. Step 5: Solve for x
    x = 4,044,270,451.20/75,231.04
  6. Step 6: Final answer
    x = 53,758.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.