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Finding the Fourth Proportional to 79,777.78, 110,088.38 and 43,965.80

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Solution

The fourth proportional to 79,777.78, 110,088.38 and 43,965.80 is: 60,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,777.78 : 110,088.38 = 43,965.80 : x
  2. Step 2: Convert to fraction form
    79,777.78/110,088.38 = 43,965.80/x
  3. Step 3: Cross multiply
    79,777.78x = 110,088.38 × 43,965.80
  4. Step 4: Simplify right side
    79,777.78x = 4,840,123,697.40
  5. Step 5: Solve for x
    x = 4,840,123,697.40/79,777.78
  6. Step 6: Final answer
    x = 60,670.07

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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.