Home / 52,054.29-78,081.21-12,611.34

Finding the Fourth Proportional to 52,054.29, 78,081.21 and 12,611.34

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Solution

The fourth proportional to 52,054.29, 78,081.21 and 12,611.34 is: 18,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,054.29 : 78,081.21 = 12,611.34 : x
  2. Step 2: Convert to fraction form
    52,054.29/78,081.21 = 12,611.34/x
  3. Step 3: Cross multiply
    52,054.29x = 78,081.21 × 12,611.34
  4. Step 4: Simplify right side
    52,054.29x = 984,708,686.92
  5. Step 5: Solve for x
    x = 984,708,686.92/52,054.29
  6. Step 6: Final answer
    x = 18,916.96

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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.