Home / 75,009.80-112,428.30-30,614.60

Finding the Fourth Proportional to 75,009.80, 112,428.30 and 30,614.60

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Solution

The fourth proportional to 75,009.80, 112,428.30 and 30,614.60 is: 45,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.80 : 112,428.30 = 30,614.60 : x
  2. Step 2: Convert to fraction form
    75,009.80/112,428.30 = 30,614.60/x
  3. Step 3: Cross multiply
    75,009.80x = 112,428.30 × 30,614.60
  4. Step 4: Simplify right side
    75,009.80x = 3,441,947,433.18
  5. Step 5: Solve for x
    x = 3,441,947,433.18/75,009.80
  6. Step 6: Final answer
    x = 45,886.64

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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.