Home / 48,390.39-72,590.06-18,810.45

Finding the Fourth Proportional to 48,390.39, 72,590.06 and 18,810.45

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Solution

The fourth proportional to 48,390.39, 72,590.06 and 18,810.45 is: 28,217.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,390.39 : 72,590.06 = 18,810.45 : x
  2. Step 2: Convert to fraction form
    48,390.39/72,590.06 = 18,810.45/x
  3. Step 3: Cross multiply
    48,390.39x = 72,590.06 × 18,810.45
  4. Step 4: Simplify right side
    48,390.39x = 1,365,451,741.15
  5. Step 5: Solve for x
    x = 1,365,451,741.15/48,390.39
  6. Step 6: Final answer
    x = 28,217.42

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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.