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Finding the Fourth Proportional to 79,952.80, 120,034.80 and 64,166.56

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Solution

The fourth proportional to 79,952.80, 120,034.80 and 64,166.56 is: 96,334.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,952.80 : 120,034.80 = 64,166.56 : x
  2. Step 2: Convert to fraction form
    79,952.80/120,034.80 = 64,166.56/x
  3. Step 3: Cross multiply
    79,952.80x = 120,034.80 × 64,166.56
  4. Step 4: Simplify right side
    79,952.80x = 7,702,220,196.29
  5. Step 5: Solve for x
    x = 7,702,220,196.29/79,952.80
  6. Step 6: Final answer
    x = 96,334.59

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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.