Home / 70,715.28-106,093.65-28,573.61

Finding the Fourth Proportional to 70,715.28, 106,093.65 and 28,573.61

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Solution

The fourth proportional to 70,715.28, 106,093.65 and 28,573.61 is: 42,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,715.28 : 106,093.65 = 28,573.61 : x
  2. Step 2: Convert to fraction form
    70,715.28/106,093.65 = 28,573.61/x
  3. Step 3: Cross multiply
    70,715.28x = 106,093.65 × 28,573.61
  4. Step 4: Simplify right side
    70,715.28x = 3,031,478,591.31
  5. Step 5: Solve for x
    x = 3,031,478,591.31/70,715.28
  6. Step 6: Final answer
    x = 42,868.79

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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.