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Finding the Fourth Proportional to 79,756.59, 119,635.35 and 20,588.22

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Solution

The fourth proportional to 79,756.59, 119,635.35 and 20,588.22 is: 30,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,756.59 : 119,635.35 = 20,588.22 : x
  2. Step 2: Convert to fraction form
    79,756.59/119,635.35 = 20,588.22/x
  3. Step 3: Cross multiply
    79,756.59x = 119,635.35 × 20,588.22
  4. Step 4: Simplify right side
    79,756.59x = 2,463,078,905.58
  5. Step 5: Solve for x
    x = 2,463,078,905.58/79,756.59
  6. Step 6: Final answer
    x = 30,882.45

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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.