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Finding the Fourth Proportional to 101,915.01, 152,872.52 and 31,799.79

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Solution

The fourth proportional to 101,915.01, 152,872.52 and 31,799.79 is: 47,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,915.01 : 152,872.52 = 31,799.79 : x
  2. Step 2: Convert to fraction form
    101,915.01/152,872.52 = 31,799.79/x
  3. Step 3: Cross multiply
    101,915.01x = 152,872.52 × 31,799.79
  4. Step 4: Simplify right side
    101,915.01x = 4,861,313,873.77
  5. Step 5: Solve for x
    x = 4,861,313,873.77/101,915.01
  6. Step 6: Final answer
    x = 47,699.69

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1.5x scale

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.