Home / 73,227.20-109,715.40-39,970.61

Finding the Fourth Proportional to 73,227.20, 109,715.40 and 39,970.61

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Solution

The fourth proportional to 73,227.20, 109,715.40 and 39,970.61 is: 59,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,227.20 : 109,715.40 = 39,970.61 : x
  2. Step 2: Convert to fraction form
    73,227.20/109,715.40 = 39,970.61/x
  3. Step 3: Cross multiply
    73,227.20x = 109,715.40 × 39,970.61
  4. Step 4: Simplify right side
    73,227.20x = 4,385,390,915.82
  5. Step 5: Solve for x
    x = 4,385,390,915.82/73,227.20
  6. Step 6: Final answer
    x = 59,887.46

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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.