Home / 52,172.85-78,258.51-36,147.60

Finding the Fourth Proportional to 52,172.85, 78,258.51 and 36,147.60

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Solution

The fourth proportional to 52,172.85, 78,258.51 and 36,147.60 is: 54,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,172.85 : 78,258.51 = 36,147.60 : x
  2. Step 2: Convert to fraction form
    52,172.85/78,258.51 = 36,147.60/x
  3. Step 3: Cross multiply
    52,172.85x = 78,258.51 × 36,147.60
  4. Step 4: Simplify right side
    52,172.85x = 2,828,857,316.08
  5. Step 5: Solve for x
    x = 2,828,857,316.08/52,172.85
  6. Step 6: Final answer
    x = 54,220.87

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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.