Home / 52,190.90-78,262.04-18,909.62

Finding the Fourth Proportional to 52,190.90, 78,262.04 and 18,909.62

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Solution

The fourth proportional to 52,190.90, 78,262.04 and 18,909.62 is: 28,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,190.90 : 78,262.04 = 18,909.62 : x
  2. Step 2: Convert to fraction form
    52,190.90/78,262.04 = 18,909.62/x
  3. Step 3: Cross multiply
    52,190.90x = 78,262.04 × 18,909.62
  4. Step 4: Simplify right side
    52,190.90x = 1,479,905,436.82
  5. Step 5: Solve for x
    x = 1,479,905,436.82/52,190.90
  6. Step 6: Final answer
    x = 28,355.62

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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.