Home / 52,120.32-78,180.50-12,677.19

Finding the Fourth Proportional to 52,120.32, 78,180.50 and 12,677.19

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Solution

The fourth proportional to 52,120.32, 78,180.50 and 12,677.19 is: 19,015.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,120.32 : 78,180.50 = 12,677.19 : x
  2. Step 2: Convert to fraction form
    52,120.32/78,180.50 = 12,677.19/x
  3. Step 3: Cross multiply
    52,120.32x = 78,180.50 × 12,677.19
  4. Step 4: Simplify right side
    52,120.32x = 991,109,052.80
  5. Step 5: Solve for x
    x = 991,109,052.80/52,120.32
  6. Step 6: Final answer
    x = 19,015.79

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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.