Home / 52,052.69-78,079.28-12,609.74

Finding the Fourth Proportional to 52,052.69, 78,079.28 and 12,609.74

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Solution

The fourth proportional to 52,052.69, 78,079.28 and 12,609.74 is: 18,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,052.69 : 78,079.28 = 12,609.74 : x
  2. Step 2: Convert to fraction form
    52,052.69/78,079.28 = 12,609.74/x
  3. Step 3: Cross multiply
    52,052.69x = 78,079.28 × 12,609.74
  4. Step 4: Simplify right side
    52,052.69x = 984,559,552.34
  5. Step 5: Solve for x
    x = 984,559,552.34/52,052.69
  6. Step 6: Final answer
    x = 18,914.67

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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.