Home / 52,099.92-78,149.34-12,657.51

Finding the Fourth Proportional to 52,099.92, 78,149.34 and 12,657.51

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Solution

The fourth proportional to 52,099.92, 78,149.34 and 12,657.51 is: 18,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,099.92 : 78,149.34 = 12,657.51 : x
  2. Step 2: Convert to fraction form
    52,099.92/78,149.34 = 12,657.51/x
  3. Step 3: Cross multiply
    52,099.92x = 78,149.34 × 12,657.51
  4. Step 4: Simplify right side
    52,099.92x = 989,176,052.54
  5. Step 5: Solve for x
    x = 989,176,052.54/52,099.92
  6. Step 6: Final answer
    x = 18,986.13

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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.