Home / 52,454.52-78,714.59-21,289.77

Finding the Fourth Proportional to 52,454.52, 78,714.59 and 21,289.77

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Solution

The fourth proportional to 52,454.52, 78,714.59 and 21,289.77 is: 31,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,454.52 : 78,714.59 = 21,289.77 : x
  2. Step 2: Convert to fraction form
    52,454.52/78,714.59 = 21,289.77/x
  3. Step 3: Cross multiply
    52,454.52x = 78,714.59 × 21,289.77
  4. Step 4: Simplify right side
    52,454.52x = 1,675,815,410.30
  5. Step 5: Solve for x
    x = 1,675,815,410.30/52,454.52
  6. Step 6: Final answer
    x = 31,947.97

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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.