Home / 75,365.12-113,084.40-31,005.20

Finding the Fourth Proportional to 75,365.12, 113,084.40 and 31,005.20

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Solution

The fourth proportional to 75,365.12, 113,084.40 and 31,005.20 is: 46,522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,365.12 : 113,084.40 = 31,005.20 : x
  2. Step 2: Convert to fraction form
    75,365.12/113,084.40 = 31,005.20/x
  3. Step 3: Cross multiply
    75,365.12x = 113,084.40 × 31,005.20
  4. Step 4: Simplify right side
    75,365.12x = 3,506,204,438.88
  5. Step 5: Solve for x
    x = 3,506,204,438.88/75,365.12
  6. Step 6: Final answer
    x = 46,522.91

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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.