Home / 52,126.56-78,189.17-12,683.70

Finding the Fourth Proportional to 52,126.56, 78,189.17 and 12,683.70

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Solution

The fourth proportional to 52,126.56, 78,189.17 and 12,683.70 is: 19,025.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,126.56 : 78,189.17 = 12,683.70 : x
  2. Step 2: Convert to fraction form
    52,126.56/78,189.17 = 12,683.70/x
  3. Step 3: Cross multiply
    52,126.56x = 78,189.17 × 12,683.70
  4. Step 4: Simplify right side
    52,126.56x = 991,727,912.11
  5. Step 5: Solve for x
    x = 991,727,912.11/52,126.56
  6. Step 6: Final answer
    x = 19,025.39

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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.