Home / 52,148.52-78,228.90-18,884.28

Finding the Fourth Proportional to 52,148.52, 78,228.90 and 18,884.28

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Solution

The fourth proportional to 52,148.52, 78,228.90 and 18,884.28 is: 28,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,148.52 : 78,228.90 = 18,884.28 : x
  2. Step 2: Convert to fraction form
    52,148.52/78,228.90 = 18,884.28/x
  3. Step 3: Cross multiply
    52,148.52x = 78,228.90 × 18,884.28
  4. Step 4: Simplify right side
    52,148.52x = 1,477,296,451.69
  5. Step 5: Solve for x
    x = 1,477,296,451.69/52,148.52
  6. Step 6: Final answer
    x = 28,328.64

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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.