Home / 53,730.96-80,633.16-18,670.32

Finding the Fourth Proportional to 53,730.96, 80,633.16 and 18,670.32

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Solution

The fourth proportional to 53,730.96, 80,633.16 and 18,670.32 is: 28,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,730.96 : 80,633.16 = 18,670.32 : x
  2. Step 2: Convert to fraction form
    53,730.96/80,633.16 = 18,670.32/x
  3. Step 3: Cross multiply
    53,730.96x = 80,633.16 × 18,670.32
  4. Step 4: Simplify right side
    53,730.96x = 1,505,446,899.81
  5. Step 5: Solve for x
    x = 1,505,446,899.81/53,730.96
  6. Step 6: Final answer
    x = 28,018.24

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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.