Home / 52,273.52-78,409.80-21,108.32

Finding the Fourth Proportional to 52,273.52, 78,409.80 and 21,108.32

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Solution

The fourth proportional to 52,273.52, 78,409.80 and 21,108.32 is: 31,662.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,273.52 : 78,409.80 = 21,108.32 : x
  2. Step 2: Convert to fraction form
    52,273.52/78,409.80 = 21,108.32/x
  3. Step 3: Cross multiply
    52,273.52x = 78,409.80 × 21,108.32
  4. Step 4: Simplify right side
    52,273.52x = 1,655,099,149.54
  5. Step 5: Solve for x
    x = 1,655,099,149.54/52,273.52
  6. Step 6: Final answer
    x = 31,662.29

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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.