Home / 48,670.93-72,991.32-20,590.48

Finding the Fourth Proportional to 48,670.93, 72,991.32 and 20,590.48

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Solution

The fourth proportional to 48,670.93, 72,991.32 and 20,590.48 is: 30,879.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,670.93 : 72,991.32 = 20,590.48 : x
  2. Step 2: Convert to fraction form
    48,670.93/72,991.32 = 20,590.48/x
  3. Step 3: Cross multiply
    48,670.93x = 72,991.32 × 20,590.48
  4. Step 4: Simplify right side
    48,670.93x = 1,502,926,314.63
  5. Step 5: Solve for x
    x = 1,502,926,314.63/48,670.93
  6. Step 6: Final answer
    x = 30,879.34

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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.