Home / 52,511.40-78,739.90-15,570.60

Finding the Fourth Proportional to 52,511.40, 78,739.90 and 15,570.60

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Solution

The fourth proportional to 52,511.40, 78,739.90 and 15,570.60 is: 23,347.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,511.40 : 78,739.90 = 15,570.60 : x
  2. Step 2: Convert to fraction form
    52,511.40/78,739.90 = 15,570.60/x
  3. Step 3: Cross multiply
    52,511.40x = 78,739.90 × 15,570.60
  4. Step 4: Simplify right side
    52,511.40x = 1,226,027,486.94
  5. Step 5: Solve for x
    x = 1,226,027,486.94/52,511.40
  6. Step 6: Final answer
    x = 23,347.83

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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.