Home / 52,172.70-78,240.47-18,884.13

Finding the Fourth Proportional to 52,172.70, 78,240.47 and 18,884.13

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Solution

The fourth proportional to 52,172.70, 78,240.47 and 18,884.13 is: 28,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,172.70 : 78,240.47 = 18,884.13 : x
  2. Step 2: Convert to fraction form
    52,172.70/78,240.47 = 18,884.13/x
  3. Step 3: Cross multiply
    52,172.70x = 78,240.47 × 18,884.13
  4. Step 4: Simplify right side
    52,172.70x = 1,477,503,112.32
  5. Step 5: Solve for x
    x = 1,477,503,112.32/52,172.70
  6. Step 6: Final answer
    x = 28,319.47

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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.