Home / 52,187.22-78,280.56-12,744.54

Finding the Fourth Proportional to 52,187.22, 78,280.56 and 12,744.54

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Solution

The fourth proportional to 52,187.22, 78,280.56 and 12,744.54 is: 19,116.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,187.22 : 78,280.56 = 12,744.54 : x
  2. Step 2: Convert to fraction form
    52,187.22/78,280.56 = 12,744.54/x
  3. Step 3: Cross multiply
    52,187.22x = 78,280.56 × 12,744.54
  4. Step 4: Simplify right side
    52,187.22x = 997,649,728.14
  5. Step 5: Solve for x
    x = 997,649,728.14/52,187.22
  6. Step 6: Final answer
    x = 19,116.74

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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.