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Finding the Fourth Proportional to 79,507.62, 109,715.34 and 45,516.39

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Solution

The fourth proportional to 79,507.62, 109,715.34 and 45,516.39 is: 62,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507.62 : 109,715.34 = 45,516.39 : x
  2. Step 2: Convert to fraction form
    79,507.62/109,715.34 = 45,516.39/x
  3. Step 3: Cross multiply
    79,507.62x = 109,715.34 × 45,516.39
  4. Step 4: Simplify right side
    79,507.62x = 4,993,846,204.42
  5. Step 5: Solve for x
    x = 4,993,846,204.42/79,507.62
  6. Step 6: Final answer
    x = 62,809.66

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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.