Home / 75,005.28-112,485.60-28,247.04

Finding the Fourth Proportional to 75,005.28, 112,485.60 and 28,247.04

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Solution

The fourth proportional to 75,005.28, 112,485.60 and 28,247.04 is: 42,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,005.28 : 112,485.60 = 28,247.04 : x
  2. Step 2: Convert to fraction form
    75,005.28/112,485.60 = 28,247.04/x
  3. Step 3: Cross multiply
    75,005.28x = 112,485.60 × 28,247.04
  4. Step 4: Simplify right side
    75,005.28x = 3,177,385,242.62
  5. Step 5: Solve for x
    x = 3,177,385,242.62/75,005.28
  6. Step 6: Final answer
    x = 42,362.15

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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.