Home / 47,699.12-71,540.52-12,642.32

Finding the Fourth Proportional to 47,699.12, 71,540.52 and 12,642.32

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Solution

The fourth proportional to 47,699.12, 71,540.52 and 12,642.32 is: 18,961.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,699.12 : 71,540.52 = 12,642.32 : x
  2. Step 2: Convert to fraction form
    47,699.12/71,540.52 = 12,642.32/x
  3. Step 3: Cross multiply
    47,699.12x = 71,540.52 × 12,642.32
  4. Step 4: Simplify right side
    47,699.12x = 904,438,146.81
  5. Step 5: Solve for x
    x = 904,438,146.81/47,699.12
  6. Step 6: Final answer
    x = 18,961.32

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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.