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Finding the Fourth Proportional to 79,903.32, 110,220.01 and 51,212.76

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Solution

The fourth proportional to 79,903.32, 110,220.01 and 51,212.76 is: 70,643.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,903.32 : 110,220.01 = 51,212.76 : x
  2. Step 2: Convert to fraction form
    79,903.32/110,220.01 = 51,212.76/x
  3. Step 3: Cross multiply
    79,903.32x = 110,220.01 × 51,212.76
  4. Step 4: Simplify right side
    79,903.32x = 5,644,670,919.33
  5. Step 5: Solve for x
    x = 5,644,670,919.33/79,903.32
  6. Step 6: Final answer
    x = 70,643.76

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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.