Home / 52,060.34-78,089.84-12,617.80

Finding the Fourth Proportional to 52,060.34, 78,089.84 and 12,617.80

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Solution

The fourth proportional to 52,060.34, 78,089.84 and 12,617.80 is: 18,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,060.34 : 78,089.84 = 12,617.80 : x
  2. Step 2: Convert to fraction form
    52,060.34/78,089.84 = 12,617.80/x
  3. Step 3: Cross multiply
    52,060.34x = 78,089.84 × 12,617.80
  4. Step 4: Simplify right side
    52,060.34x = 985,321,529.61
  5. Step 5: Solve for x
    x = 985,321,529.61/52,060.34
  6. Step 6: Final answer
    x = 18,926.53

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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.