Home / 48,051.60-72,077.23-12,991.25

Finding the Fourth Proportional to 48,051.60, 72,077.23 and 12,991.25

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Solution

The fourth proportional to 48,051.60, 72,077.23 and 12,991.25 is: 19,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,051.60 : 72,077.23 = 12,991.25 : x
  2. Step 2: Convert to fraction form
    48,051.60/72,077.23 = 12,991.25/x
  3. Step 3: Cross multiply
    48,051.60x = 72,077.23 × 12,991.25
  4. Step 4: Simplify right side
    48,051.60x = 936,373,314.24
  5. Step 5: Solve for x
    x = 936,373,314.24/48,051.60
  6. Step 6: Final answer
    x = 19,486.83

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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.