Home / 79,436.05-109,573.62-47,149.40

Finding the Fourth Proportional to 79,436.05, 109,573.62 and 47,149.40

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Solution

The fourth proportional to 79,436.05, 109,573.62 and 47,149.40 is: 65,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,436.05 : 109,573.62 = 47,149.40 : x
  2. Step 2: Convert to fraction form
    79,436.05/109,573.62 = 47,149.40/x
  3. Step 3: Cross multiply
    79,436.05x = 109,573.62 × 47,149.40
  4. Step 4: Simplify right side
    79,436.05x = 5,166,330,438.83
  5. Step 5: Solve for x
    x = 5,166,330,438.83/79,436.05
  6. Step 6: Final answer
    x = 65,037.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.