Home / 52,029.52-78,043.92-20,864.32

Finding the Fourth Proportional to 52,029.52, 78,043.92 and 20,864.32

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Solution

The fourth proportional to 52,029.52, 78,043.92 and 20,864.32 is: 31,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,029.52 : 78,043.92 = 20,864.32 : x
  2. Step 2: Convert to fraction form
    52,029.52/78,043.92 = 20,864.32/x
  3. Step 3: Cross multiply
    52,029.52x = 78,043.92 × 20,864.32
  4. Step 4: Simplify right side
    52,029.52x = 1,628,333,320.93
  5. Step 5: Solve for x
    x = 1,628,333,320.93/52,029.52
  6. Step 6: Final answer
    x = 31,296.34

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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.