Home / 52,256.52-78,415.92-18,979.20

Finding the Fourth Proportional to 52,256.52, 78,415.92 and 18,979.20

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Solution

The fourth proportional to 52,256.52, 78,415.92 and 18,979.20 is: 28,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,256.52 : 78,415.92 = 18,979.20 : x
  2. Step 2: Convert to fraction form
    52,256.52/78,415.92 = 18,979.20/x
  3. Step 3: Cross multiply
    52,256.52x = 78,415.92 × 18,979.20
  4. Step 4: Simplify right side
    52,256.52x = 1,488,271,428.86
  5. Step 5: Solve for x
    x = 1,488,271,428.86/52,256.52
  6. Step 6: Final answer
    x = 28,480.11

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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.