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Finding the Fourth Proportional to 79,801.72, 119,701.84 and 30,553.72

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Solution

The fourth proportional to 79,801.72, 119,701.84 and 30,553.72 is: 45,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,801.72 : 119,701.84 = 30,553.72 : x
  2. Step 2: Convert to fraction form
    79,801.72/119,701.84 = 30,553.72/x
  3. Step 3: Cross multiply
    79,801.72x = 119,701.84 × 30,553.72
  4. Step 4: Simplify right side
    79,801.72x = 3,657,336,502.84
  5. Step 5: Solve for x
    x = 3,657,336,502.84/79,801.72
  6. Step 6: Final answer
    x = 45,830.30

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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.