Home / 52,114.80-78,172.26-12,671.64

Finding the Fourth Proportional to 52,114.80, 78,172.26 and 12,671.64

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Solution

The fourth proportional to 52,114.80, 78,172.26 and 12,671.64 is: 19,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,114.80 : 78,172.26 = 12,671.64 : x
  2. Step 2: Convert to fraction form
    52,114.80/78,172.26 = 12,671.64/x
  3. Step 3: Cross multiply
    52,114.80x = 78,172.26 × 12,671.64
  4. Step 4: Simplify right side
    52,114.80x = 990,570,736.71
  5. Step 5: Solve for x
    x = 990,570,736.71/52,114.80
  6. Step 6: Final answer
    x = 19,007.47

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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.