Home / 52,584.90-78,826.32-20,985.84

Finding the Fourth Proportional to 52,584.90, 78,826.32 and 20,985.84

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Solution

The fourth proportional to 52,584.90, 78,826.32 and 20,985.84 is: 31,458.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,584.90 : 78,826.32 = 20,985.84 : x
  2. Step 2: Convert to fraction form
    52,584.90/78,826.32 = 20,985.84/x
  3. Step 3: Cross multiply
    52,584.90x = 78,826.32 × 20,985.84
  4. Step 4: Simplify right side
    52,584.90x = 1,654,236,539.31
  5. Step 5: Solve for x
    x = 1,654,236,539.31/52,584.90
  6. Step 6: Final answer
    x = 31,458.39

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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.