Home / 72,964.28-109,381.82-28,622.85

Finding the Fourth Proportional to 72,964.28, 109,381.82 and 28,622.85

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Solution

The fourth proportional to 72,964.28, 109,381.82 and 28,622.85 is: 42,908.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,964.28 : 109,381.82 = 28,622.85 : x
  2. Step 2: Convert to fraction form
    72,964.28/109,381.82 = 28,622.85/x
  3. Step 3: Cross multiply
    72,964.28x = 109,381.82 × 28,622.85
  4. Step 4: Simplify right side
    72,964.28x = 3,130,819,283.47
  5. Step 5: Solve for x
    x = 3,130,819,283.47/72,964.28
  6. Step 6: Final answer
    x = 42,908.93

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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.